scholarly journals Abscisic Acid and Gibberellins Antagonistically Mediate Plant Development and Abiotic Stress Responses

2018 ◽  
Vol 9 ◽  
Author(s):  
Kai Shu ◽  
Wenguan Zhou ◽  
Feng Chen ◽  
Xiaofeng Luo ◽  
Wenyu Yang
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Plant Development ◽  
Stress Responses

An LRR-only protein regulates abscisic acid-mediated abiotic stress responses during Arabidopsis seed germination

2020 ◽  
Vol 39 (7) ◽  
pp. 909-920
Author(s):  
Pratibha Ravindran ◽  
Shi Yin Yong ◽  
Bijayalakshmi Mohanty ◽  
Prakash P. Kumar
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Seed Germination ◽  
Stress Responses ◽  
Arabidopsis Seed

scholarly journals An abscisic acid-responsive protein interaction network for sucrose non-fermenting related kinase1 in abiotic stress response

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Carina Steliana Carianopol ◽  
Aaron Lorheed Chan ◽  
Shaowei Dong ◽  
Nicholas J. Provart ◽  
Shelley Lumba ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Stress Response ◽  
Stress Responses ◽  
Energy Homeostasis ◽  
Plant Stress ◽  
Interaction Network ◽  
Abiotic Stress Response ◽  
Functional Studies ◽  
Transcriptional Changes

AbstractYeast Snf1 (Sucrose non-fermenting1), mammalian AMPK (5′ AMP-activated protein kinase) and plant SnRK1 (Snf1-Related Kinase1) are conserved heterotrimeric kinase complexes that re-establish energy homeostasis following stress. The hormone abscisic acid (ABA) plays a crucial role in plant stress response. Activation of SnRK1 or ABA signaling results in overlapping transcriptional changes, suggesting these stress pathways share common targets. To investigate how SnRK1 and ABA interact during stress response in Arabidopsis thaliana, we screened the SnRK1 complex by yeast two-hybrid against a library of proteins encoded by 258 ABA-regulated genes. Here, we identify 125 SnRK1- interacting proteins (SnIPs). Network analysis indicates that a subset of SnIPs form signaling modules in response to abiotic stress. Functional studies show the involvement of SnRK1 and select SnIPs in abiotic stress responses. This targeted study uncovers the largest set of SnRK1 interactors, which can be used to further characterize SnRK1 role in plant survival under stress.

scholarly journals Phenotypic Analyses of Arabidopsis T-DNA Insertion Lines and Expression Profiling Reveal That Multiple L-Type Lectin Receptor Kinases Are Involved in Plant Immunity

2014 ◽  
Vol 27 (12) ◽  
pp. 1390-1402 ◽  
Author(s):  
Yan Wang ◽  
Klaas Bouwmeester ◽  
Patrick Beseh ◽  
Weixing Shan ◽  
Francine Govers
Keyword(s):  
Abiotic Stress ◽  
Pseudomonas Syringae ◽  
Plant Development ◽  
Stress Responses ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Alternaria Brassicicola ◽  
Lectin Receptor ◽  
Receptor Kinases ◽  
Dna Insertion

L-type lectin receptor kinases (LecRK) are membrane-spanning receptor-like kinases with putative roles in biotic and abiotic stress responses and in plant development. In Arabidopsis, 45 LecRK were identified but their functions are largely unknown. Here, a systematic functional analysis was carried out by evaluating phenotypic changes of Arabidopsis LecRK T-DNA insertion lines in plant development and upon exposure to various external stimuli. None of the LecRK T-DNA insertion lines showed clear developmental changes, either under normal conditions or upon abiotic stress treatment. However, many of the T-DNA insertion lines showed altered resistance to Phytophthora brassicae, Phytophthora capsici, Pseudomonas syringae, or Alternaria brassicicola. One mutant defective in LecRK-V.5 expression was compromised in resistance to two Phytophthora spp. but showed enhanced resistance to Pseudomonas syringae. LecRK-V.5 overexpression confirmed its dual role in resistance and susceptibility depending on the pathogen. Combined analysis of these phenotypic data and LecRK expression profiles retrieved from public datasets revealed that LecRK which are hardly induced upon infection or even suppressed are also involved in pathogen resistance. Computed coexpression analysis revealed that LecRK with similar function displayed diverse expression patterns. Because LecRK are widespread in plants, the results presented here provide invaluable information for exploring the potential of LecRK as novel sources of resistance in crops.

Small RNAs from MITE-derived stem-loop precursors regulate abscisic acid signaling and abiotic stress responses in rice

2011 ◽  
Vol 65 (5) ◽  
pp. 820-828 ◽  
Author(s):  
Yongsheng Yan ◽  
Yuman Zhang ◽  
Kun Yang ◽  
Zongxiu Sun ◽  
Yaping Fu ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Small Rnas ◽  
Stem Loop ◽  
Abscisic Acid Signaling

scholarly journals Transcriptional Regulation of Arabidopsis MIR168a and ARGONAUTE1 Homeostasis in Abscisic Acid and Abiotic Stress Responses

2012 ◽  
Vol 158 (3) ◽  
pp. 1279-1292 ◽  
Author(s):  
Wei Li ◽  
Xiao Cui ◽  
Zhaolu Meng ◽  
Xiahe Huang ◽  
Qi Xie ◽  
...  
Keyword(s):  
Transcriptional Regulation ◽  
Abscisic Acid ◽  
Abiotic Stress ◽  
Stress Responses

scholarly journals Arabidopsis MATE45 antagonizes local abscisic acid signaling to mediate development and abiotic stress responses

Plant Direct ◽  
2018 ◽  
Vol 2 (10) ◽  
pp. e00087 ◽  
Author(s):  
Nik Kovinich ◽  
Yiqun Wang ◽  
Janet Adegboye ◽  
Alexandra A. Chanoca ◽  
Marisa S. Otegui ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Abscisic Acid Signaling

scholarly journals A tuber mustard AP2/ERF transcription factor gene, BjABR1, functioning in abscisic acid and abiotic stress responses, and evolutionary trajectory of the ABR1 homologous genes in Brassica species

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e6071 ◽  
Author(s):  
Liuxin Xiang ◽  
Chao Liu ◽  
Jingzhi Luo ◽  
Lin He ◽  
Yushan Deng ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Abscisic Acid ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Sequence Similarity ◽  
Amino Acid Sequence Similarity ◽  
Genome Database ◽  
Homologous Genes ◽  
High Amino Acid ◽  
Tuber Mustard

The AP2/ERF superfamily of transcription factors is one of the largest transcription factor families in plants and plays an important role in plant development processes and stress responses. In this study, BjABR1, an AP2/ERF superfamily gene, from tuber mustard (Brassica juncea var. tumida Tsen et Lee), sharing high amino acid sequence similarity with the AtABR1 (Arabidopsis thaliana AP2-like abscisic acid repressor 1) gene, were performed functional research, and the ABR1 homologous genes in Brassica species were identified and performed phylogenetic analysis. The promoter sequence of BjABR1 contained many phytohormone- and stress-related cis-elements; ABA (abscisic acid) and abiotic stresses can induce BjABR1 expression in tuber mustard; overexpression of BjABR1 in Arabidopsis can alleviate plant sensitivity to ABA and salt and osmotic stresses, and the alleviation may be due to changes in stress/ABA-induced gene expression. These results indicated that BjABR1 functions in ABA and abiotic stress responses. By BLAST searches against the genome database of five Brassica species (three diploids, B. rapa, B. nigra, and B. oleracea, and two allotetraploid, B. juncea and B. napus) using the protein sequence of AtABR1, 3, 3, 3, 6, and 5 ABR1 homologous genes in B. nigra, B. rapa, B. oleracea, B. juncea, and B. napus were identified, respectively, and they shared high sequence similarity. By sequence analysis, annotation mistakes of the protein-coding regions of two ABR1 homologous genes, GSBRNA2T00134741001 and BjuB007684, were found and corrected. Then, the evolution analysis of these ABR1 homologous genes showed that the ancestor of the three diploid species had three ABR1 homologous genes and each diploid inherited all the three genes from their ancestor; then, allotetraploid B. juncea inherited all the six genes from B. rapa and B. nigra with no gene lost, while allotetraploid B. napus inherited all the three genes from B. oleracea and two genes from B. rapa with one gene lost, indicating that ABR1 homologous genes possessed greater hereditary conservation in Brassica species. The ABR1 homologous genes between B. rapa and B. oleracea shared much higher sequence similarity compared to that of B. nigra in diploid species, indicating that ABR1 homologous genes in B. nigra had experienced more rapid evolution, and B. rapa and B. oleracea may share closer relationship compared to B. nigra. Moreover, the spatial and temporal expression analysis of six ABR1 homologous genes of tuber mustard showed that they possessed different expression models. These results imply that ABR1 homologous genes are important to Brassica plants, and they may possess similar function in ABA and abiotic stress responses but play a role in different tissues and growing stages of plant. This study will provide the foundation to the functional research of ABR1 homologous genes in the Brassica species and help to reveal and understand the evolution mechanisms of Brassica species.

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