scholarly journals Abscisic Acid Accumulation Maintains Maize Primary Root Elongation at Low Water Potentials by Restricting Ethylene Production

2000 ◽  
Vol 122 (3) ◽  
pp. 967-976 ◽  
Author(s):  
William G. Spollen ◽  
Mary E. LeNoble ◽  
Timmy D. Samuels ◽  
Nirit Bernstein ◽  
Robert E. Sharp
Keyword(s):  
Abscisic Acid ◽  
Ethylene Production ◽  
Root Elongation ◽  
Primary Root ◽  
Water Potentials ◽  
Acid Accumulation

Confirmation that abscisic acid accumulation is required for maize primary root elongation at low water potentials

1994 ◽  
Vol 45 (Special_Issue) ◽  
pp. 1743-1751 ◽  
Author(s):  
Robert E. Sharp ◽  
Yajun Wu ◽  
Gary S. Voetberg ◽  
Imad N. Saab ◽  
Mary E. LeNoble
Keyword(s):  
Abscisic Acid ◽  
Root Elongation ◽  
Primary Root ◽  
Water Potentials ◽  
Acid Accumulation

Primary Root Elongation Rate and Abscisic Acid Levels of Maize in Response to Water Stress

Crop Science ◽  
2011 ◽  
Vol 51 (1) ◽  
pp. 157-172 ◽  
Author(s):  
Kristen A. Leach ◽  
Lindsey G. Hejlek ◽  
Leonard B. Hearne ◽  
Henry T. Nguyen ◽  
Robert E. Sharp ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Root Elongation ◽  
Primary Root ◽  
Elongation Rate ◽  
Root Elongation Rate ◽  
Response To Water

Abscisic acid employs NRP‐dependent PIN2 vacuolar degradation to suppress auxin‐mediated primary root elongation in Arabidopsis

2021 ◽  
Author(s):  
Yanying Wu ◽  
Yue Chang ◽  
Liming Luo ◽  
Wenqi Tian ◽  
Qingqiu Gong ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Root Elongation ◽  
Primary Root

scholarly journals Abscisic acid modulates auxin-responsive hypocotyl elongation

2021 ◽  
Author(s):  
Ryan Emenecker ◽  
Joseph Cammarata ◽  
Irene Yuan ◽  
Lucia Strader
Keyword(s):  
Abscisic Acid ◽  
Root Elongation ◽  
Plant Hormone ◽  
Primary Root ◽  
Hypocotyl Elongation ◽  
Forward Genetics ◽  
Rna Seq ◽  
Wild Type ◽  
Inhibitory Effects ◽  
Aba Biosynthesis

Auxin regulates many aspects of plant growth and development in concert with other plant hormones. Auxin interactions with these other phytohormones to regulate distinct processes is not fully understood. Using a forward genetics screen designed to identify seedlings resistant to the suppressive effects of auxin on dark-grown hypocotyl elongation, we identified a mutant defective in ABA ALDEHYDE OXIDASE3 (AAO3), which encodes for the enzyme that carries out the final step in the biosynthesis of the plant hormone abscisic acid (ABA). We found that all examined ABA deficient mutants display resistance to the inhibitory effects of auxin on dark-grown hypocotyl elongation, suggesting that aspects of ABA signaling are downstream of auxin in regulating dark-grown hypocotyl elongation. Conversely, these mutants display wild type responsiveness to auxin in root elongation assays, suggesting that ABA does not act downstream of auxin in regulating elongation of the root. Our RNA-seq analysis suggests that many auxin-repressed genes in the hypocotyl require an intact ABA pathway for full repression. Our results suggest a model in which auxin partially requires intact ABA biosynthesis in order to regulate hypocotyl elongation, but not to regulate primary root elongation, suggesting that the genetic interactions between these two pathways are tissue-dependent.

Salt stress inhibits germination of Stylosanthes humilis seeds through abscisic acid accumulation and associated changes in ethylene production

2018 ◽  
Vol 130 ◽  
pp. 399-407 ◽  
Author(s):  
Nilo C.Q. Silva ◽  
Genaina A. de Souza ◽  
Thaline M. Pimenta ◽  
Fred A.L. Brito ◽  
Edgard A.T. Picoli ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Salt Stress ◽  
Ethylene Production ◽  
Stylosanthes Humilis ◽  
Acid Accumulation
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