Analysis of the promoter of an abscisic acid responsive late embryogenesis abundant gene of Arabidopsis thaliana

Plant Science ◽  
1996 ◽  
Vol 114 (2) ◽  
pp. 181-192 ◽  
Author(s):  
Gillian A. Hull ◽  
Natacha Bies ◽  
David Twell ◽  
Michel Delseny
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Late Embryogenesis Abundant ◽  
Late Embryogenesis Abundant Gene ◽  
Late Embryogenesis

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.

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