![]() 35S:ARR1-SRDX transgenic Arabidopsis plants showed phenotypic changes. strains showing contrasting tolerance to arsenic (As), were exposed to a low arsenate (Asⱽ) for 30 days in order to decipher the participation of the antioxidant system, mainly related to glutathione (GSH) metabolism, together with the arsenate reductase (AR) activ. In a protoplast test system, ARR1-SRDX suppressed ARR6:beta-glucuronidase reporter gene activation by different B-type ARRs. Inoculated peanut plants with Bradyrhizobium sp. Arsenic (As) has aroused worldwide concern due to its accumulation in the food chain. 77-90 ISSN: 0167-6903 Subject: Bradyrhizobium antioxidant activity antioxidants arsenates arsenic ascorbate peroxidase biomarkers food chain gene expression glutathione glutathione peroxidase glutathione transferase glutathione-disulfide reductase metabolism metabolites monodehydroascorbate reductase (NADH) peanuts plant growth superoxide dismutase tripeptides Abstract. Romero-Puertas Eliana Molina-Moya Ana Furlan Stella Castro Eliana Bianucci Source: Plant growth regulation 2022 v.97 no.1 pp. sinensis salinity tolerance and reveal its underlying physiological mechanism. This study aimed to investigate the effects of arbuscular mycorrhizal fungi (AMF) on G. However, high soil NaCl concentration limits its growth in saline soil, including coastal areas. Gleditsia sinensis is a valuable tree species with important pharmaceutical uses. 33-49 ISSN: 0167-6903 Subject: Gleditsia sinensis afforestation antioxidant activity antioxidant enzymes biomass calcium catalase enzyme activity greenhouse experimentation leaves malondialdehyde nutrient content peroxidase photosynthesis plant growth saline soils salinity salt tolerance stomatal conductance superoxide anion superoxide dismutase toxicity trees vesicular arbuscular mycorrhizae Abstract. 35S : ARR1-SRDX transgenic Arabidopsis plants showed phenotypic changes reminiscent of plants with a reduced cytokinin status, such as a strongly reduced leaf size, an enhanced root system, and larger seeds. Geoff Wang Source: Plant growth regulation 2022 v.97 no.1 pp. In a protoplast test system, ARR1-SRDX suppressed ARR6 : -glucuronidase reporter gene activation by different B-type ARRs. The publisher has kindly granted permission to reproduce this abstract on TAIR.Author: Jinping Wang Jihong Yuan Qiong Ren Bo Zhang Jinchi Zhang Rongzhen Huang G. Taken together, these results indicate that MYC5, likely together with other, redundant transcription factors, may be activated by JA signaling to induce expression of MYB21 and components required for male fertility. Importantly, expression of MYB21 and other transcription factors required for stamen and pollen maturation was strongly reduced in stamens of MYC5-SRDX plants relative to wild-type. In particular, MYC5-SRDX plants were male sterile, with defects in stamen filament elongation, anther dehiscence, and pollen viability. Two allelic myc5 mutants exhibited no overt phenotype however, transgenic lines expressing MYC5 fused to an SRDX (SUPERMAN repressive domain X) motif phenocopied mutants defective in JA signaling. A G-box sequence in the JAZ2 promoter was necessary and sufficient for induction by MYC5 (as it is for MYC2, MYC3 and MYC4), and induction of JAZ genes was repressed by co-expression of a stabilized, JAZ1?Jas repressor. We found that a closely related transcription factor, MYC5 (bHLH28), was able to induce JAZ promoters that control some of the early JA-responsive genes, in a carrot protoplast expression system. The resulting transgenic plants showed a cytokinin deficiency phenotype, including reduced shoot and enhanced root growth, altered reproductive organs, and increased resistance to cytokinin. MYC2, MYC3 and MYC4 are JAZ-interacting bHLH transcription factors, which play a major role in controlling JA responses in vegetative tissue but likely not in reproductive tissue. 35S:ARR1-SRDX transgenic Arabidopsis plants showed phenotypic changes reminiscent of plants with a reduced cytokinin status, such as a strongly reduced leaf. In this study, the SRDX motif was fused to the C terminal end of ARR1 and expressed under the control of a 35S promoter in wild-type Arabidopsis plants. Arabidopsis thaliana plants deficient in JA-biosynthesis or -signaling are male sterile with defects in stamen and pollen development. ![]() Jasmonate hormone (JA) plays critical roles in both plant defense and reproductive development. The overexpression of the miR319a-resistant version of TCP24 in Arabidopsis disrupted the thickening of secondary. Here, we report that TCP24 negatively regulates secondary wall thickening in floral organs and roots. However, it remains unknown whether these genes are involved in cell wall development. Title: Male-sterility in Arabidopsis induced by overexpression of a MYC5-SRDX chimeric repressor miR319-targeted TCP genes are believed to regulate cell division in leaves and floral organs.
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