Abscisic acid deficiency prevents development of freezing tolerance in Arabidopsis thaliana (L.) Heynh.

1990 ◽  
Vol 79 (6) ◽  
pp. 801-806 ◽  
Author(s):  
P. Heino ◽  
G. Sandman ◽  
V. Lång ◽  
K. Nordin ◽  
E. T. Palva
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Freezing Tolerance ◽  
Acid Deficiency

Arabidopsis thaliana lipid phosphate phosphatase 2 is involved in abscisic acid signalling in leaves

2011 ◽  
Vol 49 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Sophie Paradis ◽  
Ana Laura Villasuso ◽  
Susana Saez Aguayo ◽  
Régis Maldiney ◽  
Yvette Habricot ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Lipid Phosphate

scholarly journals Brassinosteroids repress the seed maturation program during the seed-to-seedling transition

2021 ◽  
Author(s):  
Jiuxiao Ruan ◽  
Huhui Chen ◽  
Tao Zhu ◽  
Yaoguang Yu ◽  
Yawen Lei ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Abscisic Acid ◽  
Plant Hormone ◽  
Flowering Plants ◽  
Seed Maturation ◽  
Domain Protein ◽  
Abscisic Acid Insensitive3 ◽  
Underlying Mechanisms ◽  
Embryonic Structure

Abstract In flowering plants, repression of the seed maturation program is essential for the transition from the seed to the vegetative phase, but the underlying mechanisms remain poorly understood. The B3-domain protein VIVIPAROUS1/ABSCISIC ACID-INSENSITIVE3-LIKE 1 (VAL1) is involved in repressing the seed maturation program. Here we uncovered a molecular network triggered by the plant hormone brassinosteroid (BR) that inhibits the seed maturation program during the seed-to-seedling transition in Arabidopsis (Arabidopsis thaliana). val1-2 mutant seedlings treated with a BR biosynthesis inhibitor form embryonic structures, whereas BR signaling gain-of-function mutations rescue the embryonic structure trait. Furthermore, the BR-activated transcription factors BRI1-EMS-SUPPRESSOR 1 and BRASSINAZOLE-RESISTANT 1 bind directly to the promoter of AGAMOUS-LIKE15 (AGL15), which encodes a transcription factor involved in activating the seed maturation program, and suppress its expression. Genetic analysis indicated that BR signaling is epistatic to AGL15 and represses the seed maturation program by downregulating AGL15. Finally, we showed that the BR-mediated pathway functions synergistically with the VAL1/2-mediated pathway to ensure the full repression of the seed maturation program. Together, our work uncovered a mechanism underlying the suppression of the seed maturation program, shedding light on how BR promotes seedling growth.

Bacterial Quorum-Sensing Signaling-Related drr1 Mutant Influences Abscisic Acid Responsiveness in Arabidopsis thaliana L.

2021 ◽  
Author(s):  
Salvador Barrera-Ortiz ◽  
Claudia Marina López-García ◽  
Randy Ortiz-Castro ◽  
Ángel Arturo Guevara-García ◽  
José López-Bucio
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Quorum Sensing ◽  
Bacterial Quorum Sensing ◽  
Bacterial Quorum
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