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  • Open Access

    ARTICLE

    Participation of Auxin Transport in the Early Response of the Arabidopsis Root System to Inoculation with Azospirillum brasilense

    Elizabeth Carrillo-Flores1, Jonanci Arreola-Rivera1, Denní Mariana Pazos-Solís2, Moisés Bocanegra-Mondragón2, Grisel Fierro-Romero3, Ma. Elena Mellado-Rojas1, Elda Beltrán-Peña1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2383-2401, 2022, DOI:10.32604/phyton.2022.021507

    Abstract The potential of Plant Growth Promoting Rhizobacteria (PGPR) has been demonstrated in the case of plant inoculation with bacteria of the genus Azospirillum which improves yield. A. brasilense produces a wide variety of molecules, including the natural auxin indole-3-acetic acid (IAA), as well as other phytoregulators. However, several studies have suggested that auxin induces changes in plant development during their interaction with the bacteria. The effects of A. brasilense Sp245 on the development of Arabidopsis thaliana root were investigated to help explain the molecular basis of the interaction. The results obtained showed a decrease in primary root length from the… More >

  • Open Access

    ARTICLE

    Transcriptome Profiling of Flower Development Reveals Key Genes Mediating Yellow Formation in Tree Peony

    Yanzhao Zhang*, Chenyang Yu, Xi Lu, Yanwei Cheng

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2505-2518, 2022, DOI:10.32604/phyton.2022.021455

    Abstract Tree peony cultivars with yellow flowers are rare and valuable, but the molecular mechanism of pigment accumulation is not clear. In this study, the petal transcriptome of three developmental stages were sequenced to determine the differentially expressed genes (DEGs) regulating yellow flowers color. The results showed that 10,842 and 12,022 DEGs were screened in stage 1 vs. stage 2 and in stage 2 vs. stage 3, respectively. Through analysis of flavonoid structural genes (FSGs), we found that the transcription level of DFR was very low in the three developmental stages. In a small group of cultivars, the DFR transcription level… More >

  • Open Access

    ARTICLE

    Wheat Lysin-Motif-Containing Proteins Characterization and Gene Expression Patterns under Abiotic and Biotic Stress

    Minjie Liu*, Na Gao, Yaqiong Zhao, Yingpeng Wu, Zongying Yuan

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2367-2382, 2022, DOI:10.32604/phyton.2022.021406

    Abstract Lysin motif (LysM)-containing proteins (LYPs) are important pattern recognition receptors in plants. However, the evolutionary history and characteristics of LYP genes remain largely unclear in wheat. In this study, 62 LYPs were identified at genome wide in wheat. Based on phylogenetic and domain analysis, wheat LYPs were classified into 6 subgroups (group LysMe, LysMn, LYP, LYK, LysMFbox). Syntenic analysis showed the evolution of LYP genes in wheat. RNA-seq data showed that 22 genes were not expressed at any tissue or stress stimulation period. Some LYP and LYK genes were tissue- or stage- specific. The majority of TaLYK5s, TaLYK6s, TaLYP2s and… More >

  • Open Access

    ARTICLE

    Friction Coefficient Calibration of Sunflower Seeds for Discrete Element Modeling Simulation

    Shuai Wang, Zhihong Yu*, Wenjie Zhang, Dongxu Zhao, Aorigele

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2559-2582, 2022, DOI:10.32604/phyton.2022.021354

    Abstract

    Sunflower (Helianthus annuus L.) is one of the four major oil crops in the world and has high economic value. However, the lack of discrete element method (DEM) models and parameters for sunflower seeds hinders the application of DEM for computer simulation in the key working processes of sunflower seed sowing and harvesting. The present study was conducted on two varieties of sunflower, and the DEM model of sunflower seeds was established by using 3D scanning technology based on the distribution of triaxial dimensions and volumes of the geometric model of sunflower seeds. Similarly, the physical characteristics parameters of sunflower… More >

  • Open Access

    COMMUNICATION

    Electrochemical Identification of Yulania spp. by Fingerprinting of Leaves Using Glassy Carbon Electrode

    Zhiguo Lu1, Yuhong Zheng1,*, Pengchong Zhang2, Boyuan Fan3, Aimin Yu4, Li Fu3,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2549-2558, 2022, DOI:10.32604/phyton.2022.021288

    Abstract In this communication, we used electrochemical sensor for recording the electrochemical profiles of eleven species of Yulania spp. from leaf extract. Two solvents and two buffer conditions were used for electrochemical fingerprints collection. Their electrochemical fingerprints can be converted to different patterns and consequently for species recognition. The results indicate the pattern recognition is much convenient than that of the recognition of species directly using voltammetric signal. The current information in electrochemical fingerprinting represents the type and amount of electrochemically active molecules, which linked to the genetic differences among the plants. Therefore, the electrochemical fingerprints were applied for further phylogenetic… More >

  • Open Access

    ARTICLE

    Genome-Wide Identification and Expression Profiling of the Shaker K+ Channel and HAK/KUP/KT Transporter Gene Families in Grape (Vitis vinifera L.)

    Han Lei1,#, Junlin Li2,#, Zhizhong Song1,3,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2519-2536, 2022, DOI:10.32604/phyton.2022.021268

    Abstract Potassium (K+) is an essential macronutrient for plants to maintain normal growth and development. Shaker-like K+ channels and HAK/KUP/KT transporters are critical components in the K+ acquisition and translocation. In this study, we identified 9 Shaker-like K+ channel (VvK) and 18 HAK/KUP/KT transporter (VvKUP) genes in grape, which were renamed according to their distributions in the genome and relative linear orders among the distinct chromosomes. Similar structure organizations were found within each group according to the exon/intron structure and protein motif analysis. Chromosomal distribution analysis showed that 9 VvK genes and 18 VvKUP genes were unevenly distributed on 7 or… More >

  • Open Access

    ARTICLE

    Effects of Drought Stress on Key Enzymes of Carbon Metabolism, Photosynthetic Characteristics and Agronomic Traits of Soybean at the Flowering Stage under Different Soil Substrates

    Shuang Song1, Xiaomei Li2, Xin Wang1, Qi Zhou1, Yongping Li1, Xiaojing Wang1, Shoukun Dong1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2475-2490, 2022, DOI:10.32604/phyton.2022.021090

    Abstract Soybean is an important legume food crop, and its seeds are rich in nutrients, providing humans and animals with edible oil and protein feed. However, soybean is sensitive to water requirements, and drought is an important factor limiting soybean yield and quality. This study used Heinong 84 (drought resistant variety) and Hefeng 46 (intermediate variety) as tested varieties planted in chernozem, albic, and black soils. The effects of drought stress on the activities of key enzymes in carbon metabolism and photosynthetic characteristics of soybean were studied during the flowering stage, most sensitive to water. (1) The activities of SS-1, 6PGDH,… More >

  • Open Access

    ARTICLE

    Role of Organic Amendments to Mitigate Cd Toxicity and Its Assimilation in Triticum aestivum L.

    Tauqeer Ahmad Yasir1, Sobia Aslam1, Muhammad Shahid Rizwan2, Allah Wasaya1,*, Muhammad Ateeq1, Muhammad Naeem Khan3, Sikander Khan Tanveer4, Walid Soufan5, Basharat Ali6, Allah Ditta7,8, Arpna Kumari9, Ayman EL Sabagh10,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2491-2504, 2022, DOI:10.32604/phyton.2022.022473

    Abstract In soil biota, higher and enduring concentration of heavy metals like cadmium (Cd) is hazardous and associated with great loss in growth, yield, and quality parameters of most of the crop plants. Recently, in-situ applications of eco-friendly stabilizing agents in the form of organic modifications have been utilized to mitigate the adverse effects of Cd-toxicity. This controlled experiment was laid down to appraise the imprints of various applied organic amendments namely poultry manure (PM), farmyard manure (FYM), and sugarcane press mud (PS) to immobilize Cd in polluted soil. Moreover, phytoavailability of Cd in wheat was also accessed under an alkaline… More >

  • Open Access

    ARTICLE

    Identification of QTLs for Yield and Associated Traits in F2 Population of Rice

    Rohini Bhat1,*, Anil Kumar Singh2, Muntazir Mushtaq3, Romesh Kumar Salgotra2, Manmohan Sharma2, Basharat Ahmad Bhat4, Umer Basu5, Ibrahim Al-Ashkar 6, Mohammad Anwar Hossain7,*, Akihiro Ueda8, Ayman El Sabagh9

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2439-2459, 2022, DOI:10.32604/phyton.2022.020100

    Abstract Identification of quantitative trait loci (QTLs) controlling yield and yield-related traits in rice was performed in the F2 mapping population derived from parental rice genotypes DHMAS and K343. A total of 30 QTLs governing nine different traits were identified using the composite interval mapping (CIM) method. Four QTLs were mapped for number of tillers per plant on chromosomes 1 (2 QTLs), 2 and 3; three QTLs for panicle number per plant on chromosomes 1 (2 QTLs) and 3; four QTLs for plant height on chromosomes 2, 4, 5 and 6; one QTL for spikelet density on chromosome 5; four QTLs… More >

  • Open Access

    ARTICLE

    Identification and Characterization of a Novel Yellow Leaf Mutant yl1 in Rice

    Xiaofang Zeng1,#, Guangzheng Li1,#, Nu’an Liu2, Yan Li1, Jianrong Li1, Xiaozhen Huang1, Degang Zhao1,2,,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2419-2437, 2022, DOI:10.32604/phyton.2022.021199

    Abstract Leaf-color mutants play an important role in the study of chlorophyll metabolism, chloroplast development, and photosynthesis system. In this study, the yellow leaf 1 (yl1) rice mutant was identified from the ethyl methane sulfonate-treated mutant progeny of Lailong, a glutinous japonica rice landrace cultivated in Guizhou Province, China. Results showed that yl1 exhibited yellow leaves with decreased chlorophyll content throughout the growth period. Chloroplast development in the yl1 mutant was disrupted, and the grana lamellae was loosely packed and disordered. RNA sequencing and real-time quantitative polymerase chain reaction (qRT-PCR) analysis revealed that the chlorophyll synthesis-related genes OsCHLH, OsCHLM, OsCHLG, PORB,… More >

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