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Tytuł pozycji:

Possible roles for phytohormones in controlling the stomatal behavior of Mesembryanthemum crystallinum during the salt-induced transition from C 3 to crassulacean acid metabolism.

Tytuł:
Possible roles for phytohormones in controlling the stomatal behavior of Mesembryanthemum crystallinum during the salt-induced transition from C 3 to crassulacean acid metabolism.
Autorzy:
Wakamatsu A; Laboratory of Horticultural Science, Faculty of Agriculture, Kagoshima University, 1-21-24 Kohrimoto, Kagoshima, Kagoshima, 890-0065, Japan.
Mori IC; Institute of Plant Sciences and Resources, Okayama University, 2-20-1, Chuo, Kurashiki, 710-0046, Japan.
Matsuura T; Institute of Plant Sciences and Resources, Okayama University, 2-20-1, Chuo, Kurashiki, 710-0046, Japan.
Taniwaki Y; Laboratory of Horticultural Science, Faculty of Agriculture, Kagoshima University, 1-21-24 Kohrimoto, Kagoshima, Kagoshima, 890-0065, Japan.
Ishii R; Laboratory of Horticultural Science, Faculty of Agriculture, Kagoshima University, 1-21-24 Kohrimoto, Kagoshima, Kagoshima, 890-0065, Japan.
Yoshida R; Laboratory of Horticultural Science, Faculty of Agriculture, Kagoshima University, 1-21-24 Kohrimoto, Kagoshima, Kagoshima, 890-0065, Japan. Electronic address: .
Źródło:
Journal of plant physiology [J Plant Physiol] 2021 Jul; Vol. 262, pp. 153448. Date of Electronic Publication: 2021 May 21.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Publication: Jena, Germany : Urban & Fischer
Original Publication: Stuttgart ; New York : G. Fischer, c1984-
MeSH Terms:
Crassulacean Acid Metabolism*/physiology
Mesembryanthemum/*metabolism
Plant Growth Regulators/*physiology
Plant Stomata/*physiology
Salt-Tolerant Plants/*metabolism
Abscisic Acid/metabolism ; Circadian Rhythm ; Cyclopentanes/metabolism ; Cytokinins/metabolism ; Cytokinins/physiology ; Gene Expression Regulation, Plant ; Mesembryanthemum/physiology ; Oxylipins/metabolism ; Plant Epidermis/metabolism ; Plant Leaves/metabolism ; Plant Stomata/metabolism ; Real-Time Polymerase Chain Reaction ; Salt-Tolerant Plants/physiology
Contributed Indexing:
Keywords: Ice plant (Mesembryanthemum crystallinum); Phytohormone; Stomatal behavior
Substance Nomenclature:
0 (Cyclopentanes)
0 (Cytokinins)
0 (Oxylipins)
0 (Plant Growth Regulators)
6RI5N05OWW (jasmonic acid)
72S9A8J5GW (Abscisic Acid)
Entry Date(s):
Date Created: 20210531 Date Completed: 20210712 Latest Revision: 20210712
Update Code:
20240105
DOI:
10.1016/j.jplph.2021.153448
PMID:
34058643
Czasopismo naukowe
The halophyte ice plant (Mesembryanthemum crystallinum) converts its mode of photosynthesis from C 3 to crassulacean acid metabolism (CAM) during severe water stress. During the transition to CAM, the plant induces CAM-related genes and changes its diurnal stomatal behavior to take up CO 2 efficiently at night. However, limited information concerning this signaling exists. Here, we investigated the changes in the diurnal stomatal behavior of M. crystallinum during its shift in photosynthesis using a detached epidermis. M. crystallinum plants grown under C 3 conditions opened their stomata during the day and closed them at night. However, CAM-induced plants closed their stomata during the day and opened them at night. Quantitative analysis of endogenous phytohormones revealed that trans-zeatin levels were high in CAM-induced plants. In contrast, the levels of jasmonic acid (JA) and JA-isoleucine were severely reduced in CAM-induced plants, specifically at night. CAM induction did not alter the levels of abscisic acid; however, inhibitors of abscisic acid synthesis suppressed CAM-induced stomatal closure. These results indicate that M. crystallinum regulates the diurnal balance of cytokinin and JA during CAM transition to alter stomatal behavior.
(Copyright © 2021 Elsevier GmbH. All rights reserved.)

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