Abscisic acid induction of cloned cotton late embryogenesis-abundant (Lea) mRNAs

1986 ◽  
Vol 7 (3) ◽  
pp. 155-170 ◽  
Author(s):  
Glenn A. Galau ◽  
D. Wayne Hughes ◽  
Leon Dure
Keyword(s):  
Abscisic Acid ◽  
Late Embryogenesis Abundant ◽  
Late Embryogenesis

Identification of proteins regulated by cross-talk between drought and hormone pathways in Arabidopsis wild-type and auxin-insensitive mutants, axr1 and axr2

2002 ◽  
Vol 29 (1) ◽  
pp. 55 ◽  
Author(s):  
Michele Wolfe Bianchi ◽  
Catherine Damerval ◽  
Nicole Vartanian
Keyword(s):  
Oxidative Stress ◽  
Abscisic Acid ◽  
Drought Stress ◽  
Cross Talk ◽  
Late Embryogenesis Abundant ◽  
Adaptive Responses ◽  
Wild Type ◽  
Late Embryogenesis ◽  
Differential Behaviour ◽  
Related Proteins

Ten proteins differentially regulated by progressive drought stress in Arabidopsis Columbia wild-type, axr1-3 and axr2-1auxin-insensitive mutants, were identified from internal amino acid microsequencing. These proteins fell into two categories: (i) stress-related proteins, known to be induced by rapid water stress via abscisic acid (ABA)-dependent or -independent pathways [late embryogenesis abundant (LEA)-like and heat shock cognate (HS) 70, respectively], or in response to pathogens or oxidative stress [β-1,3 glucanase (BG), annexin] and (ii) metabolic enzymes [glutamine synthetase (GS), fructokinase (Frk), caffeoyl-CoA-3-O-methyltransferase (CCoAOMT)]. The differential behaviour of these proteins highlighted a role for AXR2 and/or AXR1 in the regulation of their abundance during drought adaptation. In particular, reduced induction of RD29B, GS and annexin, and overexpression of BG2 were observed specifically in the axr1-3 mutant, which is dramatically affected in several ABA-dependent drought adaptive responses, such as drought rhizogenesis. Altogether these results indicate cross-talk between auxin- and ABA-signalling in Arabidopsis drought responses.

Late embryogenesis-abundant genes encoding proteins with different numbers of hydrophilic repeats are regulated differentially by abscisic acid and osmotic stress

1992 ◽  
Vol 2 (2) ◽  
pp. 241-252 ◽  
Author(s):  
Mari Espelund ◽  
Stein Saeboe-Larssen ◽  
D. Wayne Hughes ◽  
Glenn A. Galau ◽  
Frank Larsen ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Osmotic Stress ◽  
Late Embryogenesis Abundant ◽  
Late Embryogenesis ◽  
Genes Encoding

scholarly journals Genome-Wide Analysis of the Late Embryogenesis Abundant (LEA) and Abscisic Acid-, Stress-, and Ripening-Induced (ASR) Gene Superfamily from Canavalia rosea and Their Roles in Salinity/Alkaline and Drought Tolerance

2021 ◽  
Vol 22 (9) ◽  
pp. 4554
Author(s):  
Ruoyi Lin ◽  
Tao Zou ◽  
Qiming Mei ◽  
Zhengfeng Wang ◽  
Mei Zhang ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Extreme Environments ◽  
Acid Stress ◽  
Late Embryogenesis Abundant ◽  
Developmentally Regulated ◽  
Genome Wide ◽  
Late Embryogenesis ◽  
Asr Genes ◽  
Comprehensive Survey ◽  
Asr Gene

Canavalia rosea (bay bean), distributing in coastal areas or islands in tropical and subtropical regions, is an extremophile halophyte with good adaptability to seawater and drought. Late embryogenesis abundant (LEA) proteins typically accumulate in response to various abiotic stresses, including dehydration, salinity, high temperature, and cold, or during the late stage of seed development. Abscisic acid-, stress-, and ripening-induced (ASR) genes are stress and developmentally regulated plant-specific genes. In this study, we reported the first comprehensive survey of the LEA and ASR gene superfamily in C. rosea. A total of 84 CrLEAs and three CrASRs were identified in C. rosea and classified into nine groups. All CrLEAs and CrASRs harbored the conserved motif for their family proteins. Our results revealed that the CrLEA genes were widely distributed in different chromosomes, and all of the CrLEA/CrASR genes showed wide expression features in different tissues in C. rosea plants. Additionally, we introduced 10 genes from different groups into yeast to assess the functions of the CrLEAs/CrASRs. These results contribute to our understanding of LEA/ASR genes from halophytes and provide robust candidate genes for functional investigations in plant species adapted to extreme environments.

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