Shoot-derived abscisic acid promotes root growth
نویسندگان
چکیده
منابع مشابه
Increased Endogenous Abscisic Acid Maintains Primary Root Growth and Inhibits Shoot Growth of Maize
Roots of maize (Zea mays L.) seedlings continue to grow at low water potentials that cause complete inhibition of shoot growth. In this study, we have investigated the role of abscisic acid (ABA) in this differential growth sensitivity by manipulating endogenous ABA levels as an altemative to extemal applications of the hormone. An inhibitor of carotenoid biosynthesis (fluridone) and a mutant d...
متن کاملIncreased endogenous abscisic Acid maintains primary root growth and inhibits shoot growth of maize seedlings at low water potentials.
Roots of maize (Zea mays L.) seedlings continue to grow at low water potentials that cause complete inhibition of shoot growth. In this study, we have investigated the role of abscisic acid (ABA) in this differential growth sensitivity by manipulating endogenous ABA levels as an alternative to external applications of the hormone. An inhibitor of carotenoid biosynthesis (fluridone) and a mutant...
متن کاملInteraction with ethylene: changing views on the role of abscisic acid in root and shoot growth responses to water stress.
Shoot and root growth are differentially sensitive to water stress. Interest in the involvement of hormones in regulating these responses has focused on abscisic acid (ABA) because it accumulates in shoot and root tissues under water-limited conditions, and because it usually inhibits growth when applied to well-watered plants. However, the effects of ABA can differ in stressed and non-stressed...
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We analysed effects of abscisic acid (ABA, a negative regulatory hormone), alone and in combination with positive or neutral hormones, including salicylic acid (SA), on rice growth and expression of cell cycle-related genes. ABA significantly inhibited shoot growth and induced expression of OsKRP4, OsKRP5, and OsKRP6. A yeast two-hybrid assay showed that OsKRP4, OsKRP5, and OsKRP6 interacted wi...
متن کاملRoles of abscisic acid and auxin in shoot-supplied ammonium inhibition of root system development.
A plastic root system is a prerequisite for successful plant acclimation to variable environments. The normally functioning root system is the result of a complex interaction of root-borne signals and shoot-derived regulators. We recently demonstrated that AUX1, a well-studied component of auxin transport, mediates shoot-supplied ammonium (SSA) inhibition of lateral root (LR) formation in Arabi...
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ژورنال
عنوان ژورنال: Plant, Cell & Environment
سال: 2016
ISSN: 0140-7791
DOI: 10.1111/pce.12669