To Stimulate or Inhibit? That Is the Question for the Function of Abscisic Acid

0480211 - ÚEB 2018 RIV GB eng J - Journal Article
Humplík, Jan - Bergougnoux, V. - Van Volkenburgh, E.
To Stimulate or Inhibit? That Is the Question for the Function of Abscisic Acid.
Trends in Plant Science. Roč. 22, č. 10 (2017), s. 830-841. ISSN 1360-1385. E-ISSN 1878-4372
R&D Projects: GA MŠMT(CZ) LO1204
Grant - others:PPPLZ(CZ) L200381651
Institutional support: RVO:61389030
Keywords : abscisic acid * etiolation * hypocotyl * photomorphogenesis * skotomorphogenesis
OECD category: Plant sciences, botany
Impact factor: 12.149, year: 2017

Physiologically, abscisic acid (ABA) is believed to be a general inhibitor of plant growth, including during the crucial early development of seedlings. However, this view contradicts many reports of stimulatory effects of ABA that, so far, have not been considered in the debate concerning ABA's function in plant development. To address this apparent contradiction, we propose a hypothetical mechanism to explain how ABA might contribute to the promotion of cell expansion. We wish to overturn conventional views on ABA's role during juvenile plant development and put forward the idea that, as for other phytohormones, the role of ABA is determined by dose and sensitivity and ranges from stimulatory to inhibitory effects.
Permanent Link: http://hdl.handle.net/11104/0276080