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Mechanisms for coping with submergence and waterlogging in rice
Ist Teil von
Rice (New York, N.Y.), 2012-01, Vol.5 (1), p.2-2, Article 2
Ort / Verlag
New York: Springer New York
Erscheinungsjahr
2012
Quelle
Free E-Journal (出版社公開部分のみ)
Beschreibungen/Notizen
Rice (
Oryza sativa
L.), unlike other cereals, can grow well in paddy fields and is highly tolerant of excess water stress, from either submergence (in which part or all of the plant is under water) or waterlogging (in which excess water in soil limits gas diffusion). Rice handles submergence stress by internal aeration and growth controls. A quiescence strategy based on
Submergence-1A
(
SUB1A
) or an escape strategy based on
SNORKEL1
(
SK1
) and
SNORKEL2
(
SK2
) is used for the growth controls. On the other hand, rice handles waterlogging stress by forming lysigenous aerenchyma and a barrier to radial O
2
loss (ROL) in roots in order to supply O
2
to the root tip. In this article, we summarize recent advances in understanding the mechanisms of responding to excess water stresses (
i.e
., submergence and waterlogging) in rice and other gramineous plants.