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

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

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 Defective Repression of OLE3::LUC 1 (DROL1) is specifically required for the splicing of AT–AC-type introns in Arabidopsis

2020 ◽  
Author(s):  
Takamasa Suzuki ◽  
Tomomi Shinagawa ◽  
Tomoko Niwa ◽  
Hibiki Akeda ◽  
Satoki Hashimoto ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Growth And Development ◽  
Growth Arrest ◽  
Comprehensive Analysis ◽  
Rna Seq ◽  
Plant Growth And Development ◽  
Abscisic Acid Signaling ◽  
A Subunit ◽  
Arabidopsis Homolog

AbstractAn Arabidopsis mutant named defective repression of OLE3::LUC 1 (drol1) was originally isolated as a mutant with defects in the repression of OLEOSIN3 (OLE3) after seed germination. In this study, we show that DROL1 is an Arabidopsis homolog of yeast DIB1, a subunit of U5 snRNP in the spliceosome, but comprises a subfamily specific to a certain class of eukaryotes. Comprehensive analysis of intron splicing by RNA-Seq analysis of drol1 mutants revealed reduced splicing of most of the minor introns with AT–AC dinucleotide termini. Thirty-nine genes, including those playing important roles in the response to abiotic stress, exhibited reduced splicing of AT–AC-type introns in drol1 mutants. In addition, drol1 mutant seedlings showed growth arrest, similar to that caused by the activation of abscisic acid signaling, as a result of reduced splicing of AT–AC-type introns in some genes. These results indicate that DROL1 is specifically involved in the splicing of introns with AT–AC termini, and splicing of these minor introns plays an important role in plant growth and development.

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 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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