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Grapevine is commonly referred to as the most prominent crop in certain regions, particularly in Taif in Saudi Arabia. As with other crops, grapevine is threatened by pests such as Aphis illinoissensis. Ants are well-known as an associated insect of aphids, making different mutualistic relationships. From other perspectives, ladybirds are protecting grapevines from aphids, creating a detrimental relationship with aphids, but a beneficial relationship with grapevine. The chemosphere is the result of the different relationships happening around the grapevine, where airborne metabolites mediate beneficial and detrimental interactions. Thus, exploring the changes in exo-metabolites excreted in the chemosphere is necessary. The chemosphere's alteration of airborne metabolites was used in our study to (1) detect of the composition of the grapevine community which resulted in five communities’ as follows: Intact grapevine, A. illinoissensis-infested grapevine, infested grapevine with ant, infested grapevine with ladybird, and infested grapevine with ladybird and ant, (2) non-destructive early-stage diagnosis of the aphid, (3) sustainable management of ant-aphid associations, and (4) understanding of the success of predator-prey dynamics for biological control. The status-dependent compounds of the grapevine can serve as indicators of infestation status and contribute to non-destructive early-stage diagnosis of the aphid.
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  • Open AccessOpen Access

    ARTICLE

    Comparative Analysis of the Essential Oil of the Underground Organs of Valeriana spp. from Different Countries

    Ain Raal1, Valeriia Kokitko2, Vira Odyntsova2, Anne Orav3, Oleh Koshovyi1,4,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1365-1382, 2024, DOI:10.32604/phyton.2024.053754 - 30 July 2024
    Abstract Valeriana officinalis L. is a plant from the Caprifoliaceae family, which is widely distributed in various parts of the world, especially in Europe and Asia. All species of Valeriana are distinguished by their ability to synthesize essential oil, which has a powerful effect on the physiological and mental aspects of the human body. The aim was to study the qualitative and quantitative composition of essential oil from valerian roots, collected in different countries, using the gas chromatography method, and to establish marker compounds for valerian species. 13 samples of commercial roots with rhizomes of V. officinalis from nine… More >

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    ARTICLE

    Experimental Exclusion of Guanaco Grazing Increases Cover, Diversity, Land Function and Plant Recruitment in Patagonia

    Carla Cepeda1,*, Gabriel Oliva1,2, Daniela Ferrante1,2
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1383-1401, 2024, DOI:10.32604/phyton.2024.052534 - 30 July 2024
    (This article belongs to the Special Issue: Ecology of Rangelands in Argentina)
    Abstract Semiarid Patagonia represents 25% of the rangeland area in Argentina, and sheep overgrazing has degraded about a third of it in the past. In this century, depleted domestic stocks have mostly stabilized, but Guanaco populations have grown. These native camelids share habitat and diets with sheep, but their effect on vegetation is poorly understood and has long been debated. We set up an exclusion experiment in Monte León and Cañadón Vaca, a semiarid shrubland grassland in southern Patagonia, currently grazed only by guanacos. Vegetation baselines were studied in 2016 in twelve plots, and half of… More >

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    ARTICLE

    Optimizing Sorghum Productivity Using Balanced Fertilizers on Dryland

    Samijan Samijan, Endah Nurwahyuni, Sri Minarsih*, Agus Supriyo, Sodiq Jauhari, Yulis Hindarwati, Meinarti Norma Setiapermas, Raden Heru Praptana, Endah Winarni, Vina Eka Aristya
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1403-1420, 2024, DOI:10.32604/phyton.2024.048339 - 30 July 2024
    (This article belongs to the Special Issue: Biofertilizers and Nano Fertilizers as Tools to Increase Agriculture Resilience and Sustainability)
    Abstract Sorghum is the fifth most required cereal crop globally. Sorghum bicolor has the advantage of being adaptive to both lowland and dryland, with drought-tolerant and wide adaptability. The low nutrient availability in dryland requires additional effective fertilizers to increase sorghum productivity. The research aimed to assess the application of organic, inorganic, and biofertilizers for sorghum productivity on dryland. Research in Central Java, Indonesia as dryland sorghum areas, from November 2022 to February 2023. The experiment cooperates with the farmers in a split-plot design, the main plot was two varieties and subplots of four fertilizers. The enhanced… More >

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    ARTICLE

    Melatonin Alleviates Abscisic Acid Deficiency Inhibition on Photosynthesis and Antioxidant Systems in Rice under Salt Stress

    Feiyu Yan1,2, Xin Chen1, Zhenzhen Wang1, Yuxuan Xia1, Dehui Zheng1, Sirui Xue1, Hongliang Zhao1,2, Zhiwei Huang1,2, Yuan Niu1,2, Guoliang Zhang1,2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1421-1440, 2024, DOI:10.32604/phyton.2024.053914 - 30 July 2024
    Abstract Melatonin and abscisic acid, as major plant hormones, play important roles in the physiological and biochemical activities of crops, but the interaction between the two under salt stress is not yet clear. This study investigated the endogenous levels of melatonin and abscisic acid in rice by using exogenous melatonin, abscisic acid, and their synthetic inhibitors, and examined their interactions under salt stress. The research results indicate that melatonin and abscisic acid can improve rice salt tolerance. Melatonin alleviated the salt sensitivity caused by abscisic acid deficiency, increased antioxidant enzyme activity and antioxidant content in rice More >

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    ARTICLE

    Combining QTL Mapping and Multi-Omics Identify Candidate Genes for Nutritional Quality Traits during Grain Filling Stage in Maize

    Pengcheng Li1,2,#, Tianze Zhu1,#, Yunyun Wang1,2, Shuangyi Yin1, Xinjie Zhu1, Minggang Ji1, Wenye Rui1, Houmiao Wang1, Zefeng Yang1,2,*, Chenwu Xu1,2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1441-1453, 2024, DOI:10.32604/phyton.2024.052219 - 30 July 2024
    Abstract The nutritional composition and overall quality of maize kernels are largely determined by the key chemical components: protein, oil, and starch. Nevertheless, the genetic basis underlying these nutritional quality traits during grain filling remains poorly understood. In this study, the concentrations of protein, oil, and starch were studied in 204 recombinant inbred lines resulting from a cross between DH1M and T877 at four different stages post-pollination. All the traits exhibited considerable phenotypic variation. During the grain-filling stage, the levels of protein and starch content generally increased, whereas oil content decreased, with significant changes observed between… More >

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    ARTICLE

    Metabolomic Analysis of the Anthocyanins Associated with Different Colors of Cymbidium goeringii in Guizhou, China

    Dongbo Wu1,#, Shuang Qu2,#, Lianwen Shen2, Shengqun Chen2, Xia Jiang2,3, Ai Rao1, Yuxue Zhao2,*, Yueyun Wang1,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1455-1466, 2024, DOI:10.32604/phyton.2024.051652 - 30 July 2024
    (This article belongs to the Special Issue: Plant Secondary Metabolism and Functional Biology)
    Abstract Cymbidium goeringii is an economically important ornamental plant, and flower color is one of the main features of C. goeringii that contributes to its high economic value. To clarify the molecular mechanisms underlying the role of anthocyanins in mediating differences in color among varieties, liquid chromatography–tandem mass spectrometry was used to perform anthocyanin-targeted metabolomics of seven C. goeringii varieties, including ‘Jin Qian Yuan’ (JQY), ‘Jin Xiu Qian Yuan’ (JXQY), ‘Miao Jiang Su Die’ (MJSD), ‘Qian Ming Su’ (QMS), ‘Shi Chan’ (SC), and ‘Yang Ming Su’ (YMS), as well as the C. goeringii. We detected 64 anthocyanins, including cyanidins, delphinidins,… More >

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    REVIEW

    Organ Abscission in Plants: With Special Emphasis on Bell Pepper

    Ramiro Reyes-Castro1, Héctor G. Núñez-Palenius1,*, Juan I. Valiente-Banuet2, María E. Sosa-Morales1, Blanca E. Orosco-Alcalá1, Rafael Guzmán-Mendoza1, Graciela M. L. Ruiz-Aguilar1, Rogelio Costilla-Salazar1
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1467-1484, 2024, DOI:10.32604/phyton.2024.051644 - 30 July 2024
    (This article belongs to the Special Issue: Recent Research Trends in Genetics, Genomics, and Physiology of Crop Plants)
    Abstract Bell pepper (Capsicum annuum L.), along with potato and tomato, is one of the three most cultivated vegetables in the world. Bell pepper is worldwide accepted due to its characteristics of color, smell, flavor, and texture. Bell pepper is also considered a nutritious food due to its vitamin and antioxidant contents. In Mexico, bell pepper production has a high value because it is grown for the international markets, particularly the United States of America. Nevertheless, the abscission of flowers and fruits is a factor that limits the yield, hinders the planning of activities, and causes a More >

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    ARTICLE

    Genome-Wide Discovery and Expression Profiling of the SWEET Sugar Transporter Gene Family in Woodland Strawberry (Fragaria vesca) under Developmental and Stress Conditions: Structural and Evolutionary Analysis

    Shoukai Lin1,3,4,*, Yifan Xiong2, Shichang Xu1,2, Manegdebwaoaga Arthur Fabrice Kabore2, Fan Lin5, Fuxiang Qiu1,2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1485-1502, 2024, DOI:10.32604/phyton.2024.050990 - 30 July 2024
    Abstract The SWEET (sugar will eventually be exported transporter) family proteins are a recently identified class of sugar transporters that are essential for various physiological processes. Although the functions of the SWEET proteins have been identified in a number of species, to date, there have been no reports of the functions of the SWEET genes in woodland strawberries (Fragaria vesca). In this study, we identified 15 genes that were highly homologous to the A. thaliana AtSWEET genes and designated them as FvSWEET1FvSWEET15. We then conducted a structural and evolutionary analysis of these 15 FvSWEET genes. The phylogenetic analysis enabled us… More >

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    ARTICLE

    Cu Stress-Induced Transcriptome Alterations in Sorghum and Expression Analysis of the Transcription Factor-Encoding Gene SbWRKY24

    Mingchuan Yang1, Jia Zheng2, Wenhui Yu1, Yanghua Li2, Yali Wang1, Zilu Zhang1, Zhenhui Kang1,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1503-1521, 2024, DOI:10.32604/phyton.2024.051718 - 30 July 2024
    Abstract Sorghum is not only an important bio-energy crop but also a vital raw material for brewing. Exogenous copper affects the growth and metabolism of crops in specific ways. This study identified 8475 differentially expressed genes (DEGs) by high-throughput transcriptome sequencing in the sorghum cultivar ‘Jinnuoliang 2’ after 24 h of treatment with 10 mM CuSO. Using GO analysis, 476 genes were functionally annotated, which were mainly related to catabolism and biosynthetic processes. Additionally, 90 pathways were annotated by employing the KEGG analysis. Among them, glutathione metabolism and peroxisome were induced, while photosynthesis, photosynthesis-antenna protein, and… More >

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    ARTICLE

    Chemically Mediated Interactions between Grapevine, Aphid, Ladybird, and Ant in the Context of Insect Chemical Ecology

    Taghreed Alsufyani1,*, Noura J. Alotaibi2, Nour Houda M’sakni1, Mona A. Almalki1, Eman M. Alghamdi3
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1523-1542, 2024, DOI:10.32604/phyton.2024.050351 - 30 July 2024
    Abstract This study simplifies the complex relationship among grapevine plants, aphids, ladybirds, and ants, which is essential for effective pest management and ecological balance. This study investigated the impact of aphid attacks and the presence of ants and ladybirds on the volatile compounds profile released into the chemosphere of the community consisting of the common vine Vitis vinifera, the aphid Aphis illinoisensis, the ladybird Coccinella undecimpunctata-and the ant Tapinoma magnum. This study aims to analyze the volatile compounds emitted by the grapevine and surrounding insects in response to these intricate interactions. The extraction of volatile organic compounds (VOCs) was carried… More >

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    ARTICLE

    Response of Bacterial Community and Enzyme Activity of Greenhouse Tomato under Different Irrigation Systems

    Haijian Yang1, Mingzhi Zhang1,*, Na Xiao1, Yuan Li2
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1543-1568, 2024, DOI:10.32604/phyton.2024.050915 - 30 July 2024
    Abstract The micro-sprinkler irrigation mulched (MSM) has been suggested as a novel water-saving approach in controlled environment agriculture. However, the effects of microbial community structure and enzyme activity in the rhizosphere soil on crop growth under MSM remain unclear. This study conducted a randomized experimental design using greenhouse tomatoes to investigate changes in bacterial community structure and enzyme activity in rhizosphere soil under different irrigation frequencies (F) and amounts (I) of MSM. The findings revealed that with the increase of F or I, The total count of soil bacteria in tomatoes first rose and then fell… More >

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    REVIEW

    Artificial Intelligence for Maximizing Agricultural Input Use Efficiency: Exploring Nutrient, Water and Weed Management Strategies

    Sumit Sow1,#, Shivani Ranjan1,#,*, Mahmoud F. Seleiman2,3, Hiba M. Alkharabsheh4,*, Mukesh Kumar1, Navnit Kumar1, Smruti Ranjan Padhan5, Dhirendra Kumar Roy1, Dibyajyoti Nath6, Harun Gitari7, Daniel O. Wasonga8
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1569-1598, 2024, DOI:10.32604/phyton.2024.052241 - 30 July 2024
    (This article belongs to the Special Issue: Abiotic and Biotic Stress Tolerance in Crop)
    Abstract Agriculture plays a crucial role in the economy, and there is an increasing global emphasis on automating agricultural processes. With the tremendous increase in population, the demand for food and employment has also increased significantly. Agricultural methods traditionally used to meet these requirements are no longer adequate, requiring solutions to issues such as excessive herbicide use and the use of chemical fertilizers. Integration of technologies such as the Internet of Things, wireless communication, machine learning, artificial intelligence (AI), and deep learning shows promise in addressing these challenges. However, there is a lack of comprehensive documentation… More >

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    ARTICLE

    Transcriptomic Analysis Reveals the Formation Mechanism of Anthocyanins Light-Independent Synthesis in Chrysanthemum

    Fangye Liu1,#, Jiaping Qu1,#, Yajun Li1, Jiawei Fan1, Yumeng Cui1, Jingwen Wu1, Xueqi Gu1, Xia Li2,*, He Huang1,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1599-1621, 2024, DOI:10.32604/phyton.2024.051386 - 30 July 2024
    (This article belongs to the Special Issue: Plant Secondary Metabolism and Functional Biology)
    Abstract Chrysanthemum × morifolium is a horticultural crop which plays a vital role in the flower industry with significant economic value and has a cultivation history of over three thousand years in China. The accumulation of anthocyanins is always affected by light. Here, we revealed that anthocyanin accumulation is highly dependent on light in ‘2021135’ genotype chrysanthemum, while it is light-independent in ‘2001402’ genotype chrysanthemum. However, no literature has been reported regarding the non-photosensitive chrysanthemum in anthocyanins light-independent synthesis pathways. Through the phenotype analysis of 44 F generations, we found that light-independence is a dominant trait which… More >

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    ARTICLE

    Enhancing Canola Yield and Photosynthesis under Water Stress with Hydrogel Polymers

    Elham A. Badr1, Gehan Sh. Bakhoum1, Mervat Sh. Sadak2, Ibrahim Al-Ashkar3, Mohammad Sohidul Islam4, Ayman El Sabagh5,6,*, Magdi T. Abdelhamid2,7,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1623-1645, 2024, DOI:10.32604/phyton.2024.054453 - 30 July 2024
    Abstract While Egypt’s canola production per unit area has recently grown, productivity remains low, necessitating increased productivity. Hydrogels are water-absorbent polymer compounds that can optimize irrigation schedules by increasing the soil’s ability to retain water. Accordingly, two field experiments were conducted to examine hydrogel application to sandy soil on canola growth, biochemical aspects, yield, yield traits, and nutritional quality of yielded seeds grown under water deficit stress conditions. The experiments were conducted by arranging a split-plot layout in a randomized complete block design (RCBD) with three times replications of each treatment. While water stress at 75%… More >

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    ARTICLE

    Combined Application of Biostimulants and EDTA Improved Wheat Productivity under Cadmium Stress

    Abida Aziz1, Shafiqa Bano1, Mubshar Hussain2, Muhammad Farooq Azhar3, Ghulam Yasin3, Naila Hadayat4, Iqra Arooj5, Abeer Hashem6, Ajay Kumar7, Elsayed Fathi Abd_Allah8, Qamar uz Zaman9,10,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1647-1665, 2024, DOI:10.32604/phyton.2024.050974 - 30 July 2024
    (This article belongs to the Special Issue: Abiotic Stress Impacts on Plant Physiology and Their Alleviation)
    Abstract Wheat (Triticum aestivum L.) exhibits a greater capacity for cadmium (Cd) absorption compared to other cereal crops, leading to elevated daily Cd intake, and posing a significant threat to public health. For the mitigation of Cd stress in sustainable and environmentally friendly way, a pot study was designed by using exogenous application of various biostimulants, i.e., Nigella sativa and Ocimum sanctum extracts: 0%, 10%, and 20% in combination with the chelating agent ethylenediaminetetraacetic acid (EDTA) using 0 and 5 mg kg under various levels of Cd stress (i.e., 0, 5, 10, and 15 mg kg soil). Results revealed… More >

    Graphic Abstract

    Combined Application of Biostimulants and EDTA Improved Wheat Productivity under Cadmium Stress

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    ARTICLE

    Summer Warming Limited Bud Output Drives a Decline in Daughter Shoot Biomass through Reduced Photosynthetis of Parent Shoots in Leymus chinensis Seedlings

    Song Gao1, Ruocheng Xu2, Lin Li3, Jiao Wang2, Nian Liu2, Johannes M. H. Knops4, Junfeng Wang2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1667-1675, 2024, DOI:10.32604/phyton.2024.051548 - 30 July 2024
    (This article belongs to the Special Issue: Grassland Ecology in China under Global Change)
    Abstract Understanding how summer warming influences the parent and daughter shoot production in a perennial clonal grass is vital for comprehending the response of grassland productivity to global warming. Here, we conducted a simulated experiment using potted Leymus chinensis, to study the relationship between the photosynthetic activity of parent shoots and the production of daughter shoots under a whole (90 days) summer warming scenario (+3°C). The results showed that the biomass of parents and buds decreased by 25.52% and 33.45%, respectively, under warming conditions. The reduction in parent shoot biomass due to warming directly resulted from decreased… More >

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    ARTICLE

    Comparative Chemical Research in Essential Oils from Six Apiaceae Species Growing in the Northern Region of Vietnam

    Nguyen Quang Hung1,2,#, Nguyen Thanh Tung3,#, Nguyen Phuong Hanh1, Chu Thi Thu Ha1, Nguyen Thi Nhung3, Nguyen Thai An3, Vu Xuan Giang3, Luong Van Hao4, Oleh Koshovyi5, Ain Raal5,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1677-1687, 2024, DOI:10.32604/phyton.2024.053624 - 30 July 2024
    Abstract Our study aimed to compare the essential oil (EO) concentration and composition of several Apiaceae species growing in the Northern region of Vietnam. The yields of EOs from materials ranged from 0.03% (root EO of Angelica acutiloba and aerial parts EO of Heracleum bivittatum)−0.27% (leaf EO of Xyloselinum vietnamense). Gas chromatography-mass spectrometry (GC-MS) allowed the identification of 74 components in the EOs of six Apiaceae species, making up 94.4%–100.0% of the oils. In EO from Angelica acutiloba, (Z)-ligustilide accounted for an extremely large proportion (94.9%). EO of Angelica pubescens was dominated by six characteristic components including α-pinene (21.5%), β-phellandrene (18.1%), p-cymene… More >

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    ARTICLE

    Impacts of Defoliation on Morphological Characteristics and Non-Structural Carbohydrates of Populus talassica × Populus euphratica Seedlings

    Mengxu Su1, Zhanjiang Han1,*, Zhen Zhao2, Xiaofeng Wu1, Jiaju Wu1
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1689-1703, 2024, DOI:10.32604/phyton.2024.052814 - 30 July 2024
    (This article belongs to the Special Issue: Enhancing the Carbon Sequestration Capacity of the Agricultural, Forestry, and Agroforestry Ecosystems)
    Abstract Leaves are important ‘source’ organs that synthesize organic matter, providing carbon sources for plant growth. Here, we used Populus talassica × Populus euphratica, the dominant species in ecological and timber forests, to simulate carbon limitation through artificial 25%, 50%, and 75% defoliation treatments and explore the effects on root, stem, and leaf morphology, biomass accumulation, and carbon allocation strategies. At the 60th d after treatment, under 25% defoliation treatment, the plant height, specific leaf weight, root surface area and volume, and concentrations of non-structural carbohydrates in stem and root were significantly increased by 9.13%, 20.00%, 16.60%,… More >

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    ARTICLE

    Selenium Regulates Antioxidant Capacities and Diterpenoid Biosynthesis in the Medicinal Plant Isodon rubescens

    Fenglan Zhao1,2,#, Shuwen Wu1,#, Xue Meng1, Jianping Xue1,2, Yongbo Duan1,2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1705-1716, 2024, DOI:10.32604/phyton.2024.052287 - 30 July 2024
    Abstract Dōng líng căo, the dried aboveground parts of Isodon rubescens (Hemls.) Hara., is commonly consumed as a medicinal decoction or tea beverage. Natural beverages can be an important source of human dietary selenium (Se). However, how I. rubescens plants respond to exogenous Se remains unknown. In this study, a pot cultivation experiment was employed to investigate the phenotypic and physiological responses of I. rubescens plants exposed to Se. Fifteen days after applying different concentrations of sodium selenate to the soil, the Se enrichment capacity, growth indices, antioxidant capacities, and the content of flavonoids and diterpenoids were measured in… More >

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    ARTICLE

    Integrative Analysis of Transcriptome and Phenolic Compounds Profile Provides Insights into the Quality of Soursop (Annona muricata L.) Fruit

    Yolotzin Apatzingán Palomino-Hermosillo1, Ángel Elpidio Díaz-Jasso2, Rosendo Balois-Morales1, Verónica Alhelí Ochoa-Jiménez1,3, Pedro Ulises Bautista-Rosales1, Guillermo Berumen-Varela1,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1717-1732, 2024, DOI:10.32604/phyton.2024.052216 - 30 July 2024
    (This article belongs to the Special Issue: Plant Secondary Metabolism and Functional Biology)
    Abstract Soursop (Annona muricata L.) is a tropical fruit highly valued for its unique flavor, nutritional value, and health-promoting properties. The ripening process of soursop involves complex changes in gene expression and metabolite accumulation, which have been studied using various omics technologies. Transcriptome analysis has provided insights into the regulation of key genes involved in ripening, while metabolic compound analysis has revealed the presence of numerous bioactive compounds with potential health benefits. However, the integration of transcriptome and metabolite compound data has not been extensively explored in soursop. Therefore, in this paper, we present a comprehensive analysis… More >

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    ARTICLE

    Genetic Variability and Phenotypic Correlations Study among Grain Quality Traits and Mineral Elements Concentrations in Colored and Non-Colored Rice (Oryza sativa L.)

    Adel A. Rezk1,2,*, Mohamed M. El-Malky3, Heba I. Mohamed4,*, Hossam S. El-Beltagi1,5
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1733-1748, 2024, DOI:10.32604/phyton.2024.052739 - 30 July 2024
    (This article belongs to the Special Issue: Recent Research Trends in Genetics, Genomics, and Physiology of Crop Plants)
    Abstract Twenty-four rice genotypes were examined to assess genetic variability, heritability, and correlations for seven-grain quality traits, eight nutritional elements, and protein. ANOVA revealed significant differences for the quality traits studied. For every trait under study, the phenotypic coefficient of variation was higher than the correspondence genotypic coefficient of variation. Heritability in a broad sense varied from 29.75% for grain length to 98.31% for the elongation trait. Hulling percentage recovery had a highly significant positive correlation with milling and head rice percentage. Consequently, milling percentage had a highly positive correlation with head rice percentage. In amylose… More >

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    ARTICLE

    Physiological and Biochemical Responses of Perennial Ryegrass Mixed Planting with Legumes under Heavy Metal Pollution

    Yi Xi, Li Zhang, Yanhong Xu, Wei Cheng, Chao Chen*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1749-1765, 2024, DOI:10.32604/phyton.2024.051793 - 30 July 2024
    (This article belongs to the Special Issue: Abiotic Stress Impacts on Plant Physiology and Their Alleviation)
    Abstract In artificially controlled pot experiments, perennial ryegrass was mixed with other leguminous plants (white clover and alfalfa) and treated with lead, zinc and cadmium (337 mg·kg, 648 mg·kg, and 9 mg·kg, respectively) to simulate compound pollution conditions. The results showed that the concentrations of heavy metals, transport factors, and bioconcentration factors in mixed planting of ryegrass decreased compared with those in monoculture. Regardless of whether heavy metal pollution was introduced, mixed planting increased the aboveground and underground biomasses of ryegrass. The different mixed planting treatments had no significant impact on the chlorophyll concentration of ryegrass.… More >

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    ARTICLE

    Cloning, Characterization and Transformation of Methyltransferase 2a Gene (Zmet2a) in Maize (Zea mays L.)

    Xin Qi1,#, Yu Wang1,#, Xing Zhang1, Xiaoshuang Wei1, Xinyang Liu1, Zhennan Wang1, Zhenhui Wang1,*, Fenglou Ling2,*
    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1767-1779, 2024, DOI:10.32604/phyton.2024.052844 - 30 July 2024
    Abstract DNA methylation is an important epigenetic regulatory mechanism, it regulates gene expression by recruiting proteins involved in gene repression or by inhibiting the binding of transcription factor(s) to DNA. In this study, a novel methyltransferase 2a gene (Zmet2a) was cloned in maize and identified by polymerase chain reaction-base (PCR-base) using a bioinformatics strategy. The Zmet2a cDNA sequence is 2739 bp long and translates to 912 amino acid peptides. The Zmet2a protein revealed that it contains BAH and CHROMO structural domains, is a non-transmembrane protein that is hydrophilically unstable, and has no signal peptide structure. Meanwhile, we verified More >

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