Chunxue Yang^*, Yajie Liu, Wenna Zhao, Na Wang

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 719-729, 2021, DOI:10.32604/phyton.2021.015024

Abstract To understand arbuscular mycorrhizal (AM) fungi resources and develop AM fungal species in ornamental plants with saline-alkaline tolerances, Iris lactea, which grows in the Songnen saline-alkaline grassland with a high ornamental value, was selected as the experimental material, and the colonization characteristics of its roots and the AM fungal diversity in its rhizosphere were explored. The results of the observations and calculations of mycorrhizae from ten different samples showed that AM fungi colonized the roots of I. lactea and formed Arum-type mycorrhizal structures. There was a significant correlation between soil spore density and pH value, while the colonization rate showed… More >

Qian Sun^1,2, Toshihiko Yamada³, Yulai Han^2,*, Tetsuo Takano^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 827-836, 2021, DOI:10.32604/phyton.2021.013805

Abstract The lignocellulosic crop Miscanthus spp. has been identified as a good candidate for biomass production. The responses of Miscanthus sinensis Anderss. to salinity were studied to satisfy the needs for high yields in marginal areas and to avoid competition with food production. The results indicated that the relative advantages of the tolerant accession over the sensitive one under saline conditions were associated with restricted Na⁺ accumulation in shoots. Seedlings of two accessions (salt-tolerant ‘JM0119’ and salt-sensitive ‘JM0099’) were subjected to 0 (control), 100, 200, and 300 mM NaCl stress to better understand the salt-induced biochemical responses of genes involved in… More >

Xiaohang He¹, Minjie Liu², Zhengwu Fang¹, Dongfang Ma^1,2,3,*, Yilin Zhou^1,3,*, Junliang Yin¹

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 971-986, 2021, DOI:10.32604/phyton.2021.012726

Abstract Plant AT-rich sequence and zinc-binding protein (PLATZ) is a plant transcription factor that has been studied in corn. PLATZ can non-specifically bind to sequences rich in A/T bases to induce transcriptional repression. It is involved in the regulation of dehydration tolerance in seeds. In this study, we performed bioinformatics analysis to identify and characterize wheat PLATZ(TaPLATZ)genes. We identified 49 wheat PLATZ genes by searching the wheat genome by using known PLATZ gene sequences from rice, Arabidopsis, and maize. Phylogenetic analysis on PLATZ gene sequences from different species was performed. We found that PLATZs could be divided into three groups. The… More >

Nong Zhou^1,2, Lingfeng Xu¹, Min Yang², Dongqin Guo¹, Qiuxia Gan, Jingjing Zhao^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 747-759, 2021, DOI:10.32604/phyton.2021.014858

Abstract A field experiment was conducted to determine the effects of two commercial strains composed of mulple arbuscular mycorrhizal fungi (AMF) species on plant growth, antioxidant capacity, and medicine quality of Paris polyphylla var. yunnanensis in three subtropical soils from Wanzhou, Anshun and Baoshan in fields. The results showed that AMF inoculation enhanced the fungal colonization rate and activities of both succinate dehydrogenase and alkaline phosphatase, thereby, enhancing the mycorrhizal viability of P. polyphylla var. yunnanensis. The concentrations of photosynthetic pigments (chlorophyll a, b, a+b and carotenoids), soluble sugar, soluble protein and photosynthetic capacity were higher in AMF-inoculated plants than in… More >

Roberto Arredondo-Valdés¹, Francisco D. Hernández-Castillo², Mario Rocandio-Rodríguez¹, Julia C. Anguiano-Cabello³, Madai Rosas-Mejía¹, Venancio Vanoye-Eligio¹, Salvador Ordaz-Silva⁴, Imelda V. López-Sánchez⁴, Laura D. Carrazco-Peña⁴, Julio C. Chacón-Hernández^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 895-906, 2021, DOI:10.32604/phyton.2021.014301

Abstract The tomato (Solanum lycopersicum L.) is one of the world’s most important vegetable crops. Still, phytopathogenic bacteria affect the yield and quality of tomato cultivation, like Agrobacterium tumefeciens (At), Clavibacter michiganensis subsp. michiganensis (Cmm), Pseudomonas syringae pv. tomato (Pst), Ralstonia solanacearum (Rs), and Xanthomonas axonopodis (Xa). Synthetic chemical products are used mostly on disease plant control, but overuse generates resistance to bacterial control. This study aimed to evaluate the in vitro antibacterial activity of the ethanolic extract of Moringa oleifera Lam. leaves against At, Cmm, Pst, Rs, and Xa, as well as information about this plant species’ chemical composition. Antibacterial… More >

Cesar B. Ramírez-López^1,2, Rita Beltrán-Sánchez¹, Alistair Hernández-Izquierdo¹, José Luis SalvadorHernández¹, Eduardo Salcedo-Pérez², Rosa E. del Río¹, Mauro M. Martínez Pacheco^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 907-920, 2021, DOI:10.32604/phyton.2021.013775

Abstract This study scrutinized the possibility of finding toxicant or deterrent plant metabolites against the dry wood termite Incisitermes marginipennis (Latreille). Plant deterrent agents act as repellents or antifeedants to prevent wood decay and increase its useful life. The potential of the tree Caesalpinia coriaria (Fabaceae) as a biological source of molecules with deterrent effects against the dry wood termite was assessed by a phytochemical fractionation guided by repellence and antifeedant activities. The gas chromatography-mass spectrometry analysis of the leaf essential oil showed geraniol to be one of the major components and its repellent and antifeedant effects were determined. Geraniol had… More >

Jiao Deng^1,2,#, Fen Dong^3,#, Chaoxin Wu¹, Jiali Zhao¹, Hongyou Li¹, Juan Huang¹, Taoxiong Shi¹, Ziye Meng¹, Fang Cai¹, Qingfu Chen^1,*, Pingfang Yang^2,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 859-870, 2021, DOI:10.32604/phyton.2021.014625

Abstract Common buckwheat (Fagopyrum esculentum), a specialty crop in southwest China, is not only used as a supplement to primary grain crops but also to produce beverages, such as tea and wine. To fully exploit the products made from common buckwheat flower, ultra-performance liquid chromatography–electrospray ionization– tandem mass spectrometry (UPLC–ESI–MS/MS) was conducted to analyze the metabolites in red- (‘Guihong 2’) and white-flowered (‘Fengtian 1’) buckwheat cultivars. A total of 784 metabolites were identified of which flavonoids were the largest group with 191 components, followed by organic acids and derivatives (126), and amino acids and derivatives (95). Besides, dozens of phenylpropanoids, nucleotides… More >

Qi Zhang^1,#, Pengtao Li^2,#, Aiying Liu¹, Shaoqi Li¹, Quanwei Lu², Qun Ge¹, Junwen Li¹, Wankui Gong¹, Xiaoying Deng¹, Haihong Shang^1,3, Yuzhen Shi^1,*, Youlu Yuan^1,3,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 837-858, 2021, DOI:10.32604/phyton.2021.014437

Abstract Cotton is the most widely cultivated commercial crop producing natural fiber around the world. As a critical trait for fiber quality, fiber strength principally determined during the secondary wall thickening period. Based on the developed BC₅F_3:5 CSSLs (chromosome segment substitution lines) from Gossypium hirsutum CCRI36 × G. barbadense Hai 1, the superior MBI9915 was chosen to construct the secondary segregated population BC₇F₂ with its recurrent parent CCRI36, which was subsequently subjected to Bulk segregant RNA-sequencing (BSR-seq) for rapid identification of candidate genes related to fiber strength. A total of 4 fiber-transcriptome libraries were separately constructed and sequenced, including two parents… More >

Chenggang Liang^1,#, Chunyu Wei^1,#, Yan Wang^1,*, Wujuan Yu¹, Kai Liao¹, Taoxiong Shi¹, Dabing Xiang^2,3, Qijiao Chen¹

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 871-893, 2021, DOI:10.32604/phyton.2021.014242

Abstract Rice-Tartary buckwheat (RTB) is a special germplasm of Tartary buckwheat. In this study, the appraisal of taste quality between RTB and conventional Tartary buckwheat (CTB) was presented, and the metabolites in kernels at three typical grain filling stage (GFS) were investigated. Unlike CTB, RTB showed thin shell seeds without longitudinal furrows at maturity, which was easily artificially dehulled. Sense organ test indicated that RTB exhibited better taste quality because of the higher values of appearance, viscosity, taste and summary were appraised. In total, 92 metabolites were identified in kernels using GM-MS metabolomics platform. The levels of most metabolites changed greatly… More >

Yinkai Xi^1,2, Biao Zeng³, Hengyu Huang^1,4,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 987-1001, 2021, DOI:10.32604/phyton.2021.014218

Abstract An efficient regeneration system of Rhynchostylis retusa was established to provide technical reference for the application of tissue culture tube seedlings in production. The mixtures of callus and protocorm from aseptic germination were used as explants. The optimal media of each stage was selected for callus proliferation, protocorm occurrence and growth, rejuvenation and rooting via a single, complete combination and orthogonal experiment. The results showed that the optimal medium for callus proliferation, protocorms occurrence and growth was 1/2 Murashige and Skoog (MS) medium adding 50 g·L⁻¹ banana puree, 0.1 mg·L⁻¹ α-naphthaleneacetic acid (NAA), 1.5 mg·L⁻¹ 6-benzylaminopurine (6-BA) and 1.0 mg·L⁻¹… More >