scholarly journals FcLDP1, a Gene Encoding a Late Embryogenesis Abundant (LEA) Domain Protein, Responds to Brassinosteroids and Abscisic Acid during the Development of Fruits in Fragaria chiloensis

2016 ◽  
Vol 7 ◽  
Author(s):  
Analía Espinoza ◽  
Rodrigo Contreras ◽  
Gustavo E. Zúñiga ◽  
Raúl Herrera ◽  
María Alejandra Moya-León ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Late Embryogenesis Abundant ◽  
Gene Encoding ◽  
Late Embryogenesis ◽  
Fragaria Chiloensis ◽  
Domain Protein

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.

Fruit ripening-related expression of a gene encoding group 5 late embryogenesis abundant protein inCitrus

2006 ◽  
Vol 49 (5) ◽  
pp. 403-408 ◽  
Author(s):  
Oh-Sung Jeon ◽  
Chan-Shick Kim ◽  
Sam-Pin Lee ◽  
Sung Ku Kang ◽  
Chang-Myung Kim ◽  
...  
Keyword(s):  
Fruit Ripening ◽  
Late Embryogenesis Abundant ◽  
Late Embryogenesis Abundant Protein ◽  
Gene Encoding ◽  
Abundant Protein ◽  
Late Embryogenesis ◽  
Group 5

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 Dehydration-Specific Induction of Hydrophilic Protein Genes in the Anhydrobiotic Nematode Aphelenchus avenae

2004 ◽  
Vol 3 (4) ◽  
pp. 966-975 ◽  
Author(s):  
John A. Browne ◽  
Katharine M. Dolan ◽  
Trevor Tyson ◽  
Kshamata Goyal ◽  
Alan Tunnacliffe ◽  
...  
Keyword(s):  
Protein A ◽  
Late Embryogenesis Abundant ◽  
Northern Hybridization ◽  
Mrna Levels ◽  
Gene Encoding ◽  
Late Embryogenesis ◽  
Aphelenchus Avenae ◽  
Free Living Nematode ◽  
Group 3 ◽  
The Relationship

ABSTRACT Some organisms can survive exposure to extreme desiccation by entering a state of suspended animation known as anhydrobiosis. The free-living nematode Aphelenchus avenae can be induced to enter the anhydrobiotic state by exposure to a moderate reduction in relative humidity. During this preconditioning period, the nematode accumulates large amounts of the disaccharide trehalose, which is thought to be necessary, but not sufficient, for successful anhydrobiosis. To identify other adaptations that are required for anhydrobiosis, we developed a novel SL1-based mRNA differential display technique to clone genes that are upregulated by dehydration in A. avenae. Three such genes, Aav-lea-1, Aav-ahn-1, and Aav-glx-1, encode, respectively, a late embryogenesis abundant (LEA) group 3 protein, a novel protein that we named anhydrin, and the antioxidant enzyme glutaredoxin. Strikingly, the predicted LEA and anhydrin proteins are highly hydrophilic and lack significant secondary structure in the hydrated state. The dehydration-induced upregulation of Aav-lea-1 and Aav-ahn-1 was confirmed by Northern hybridization and quantitative PCR experiments. Both genes were also upregulated by an osmotic upshift, but not by cold, heat, or oxidative stress. Experiments to investigate the relationship between mRNA levels and protein expression for these genes are in progress. LEA proteins occur commonly in plants, accumulating during seed maturation and desiccation stress; the presence of a gene encoding an LEA protein in an anhydrobiotic nematode suggests that some mechanisms of coping with water loss are conserved between plants and animals.

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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