ABA, ethylene and the control of shoot and root growth under water stress
Robert E. Sharp,Mary E. LeNoble +1 more
TLDR
The question of whether abscisic acid acts as an inhibitor or promoter of shoot growth in plants growing in drying soil is examined, drawing on current understanding of the role of ABA in root growth maintenance.Abstract:
The question of whether abscisic acid (ABA) acts as an inhibitor or promoter of shoot growth in plants growing in drying soil is examined, drawing on current understanding of the role of ABA in root growth maintenance. Particular consideration is given to studies of endogenous ABA deficiency, which have shown that an important role of ABA is to limit ethylene production, and that this interaction is involved in the effects of ABA status on shoot and root growth.read more
Citations
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Understanding plant responses to drought — from genes to the whole plant
TL;DR: Attention is drawn to the perception and signalling processes (chemical and hydraulic) of water deficits, which are essential for a holistic understanding of plant resistance to stress, which is needed to improve crop management and breeding techniques.
Journal ArticleDOI
Drought-induced responses of photosynthesis and antioxidant metabolism in higher plants
TL;DR: This review focuses on the ability and strategies of higher plants to respond and adapt to drought stress, including proline and glycine-betaine, as well as the role of abscisic acid under drought stress conditions.
Journal ArticleDOI
How Plants Cope with Water Stress in the Field? Photosynthesis and Growth
Maria Manuela Chaves,João Pereira,João Maroco,Maria Luísa Rodrigues,Cândido Pinto Ricardo,Maria Leonor Osório,Isabel S. Carvalho,T. Faria,Carla Pinheiro +8 more
TL;DR: Differences among species that can be traced to different capacities for water acquisition, rather than to differences in metabolism at a given water status, are described.
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Methods and concepts in quantifying resistance to drought, salt and freezing, abiotic stresses that affect plant water status
TL;DR: The emphasis is on experiments that quantify resistance to realistic and reproducible low water potential (drought), salt and freezing stresses while being suitable for genetic studies where a large number of lines must be analyzed.
Journal Article
Drought stress in plants: A review on morphological characteristics and pigments composition
Cheruth Abdul Jaleel,P. Manivannan,Abdul Wahid,Muhammad Farooq,H.J. Al-Juburi,Ramamurthy Somasundaram,Rajaram Panneerselvam +6 more
TL;DR: Drought induced changes in morphological, physiological and pigments composition in higher plants are described, which results in declined light harvesting and generation of reducing powers, which are a source of energy for dark reactions of photosynthesis.
References
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Book
Ethylene in plant biology
TL;DR: This book discusses Ethylene Analysis and Properties of the Gas, the Role of Ethylene in Agriculture, and Roles and Physiological Effects ofEthylene in Plant Physiology: Dormancy, Growth and Development.
Ethylene in Plant Biology
TL;DR: This book discusses Ethylene Analysis and Properties of the Gas, the Role of Ethylene in Agriculture, and Roles and Physiological Effects ofEthylene in Plant Physiology: Dormancy, Growth and Development.
Journal ArticleDOI
Interaction with ethylene: changing views on the role of abscisic acid in root and shoot growth responses to water stress.
TL;DR: Studies of several species indicate that an important role of endogenous ABA is to limit ethylene production, and that as a result of this interaction ABA may often function to maintain rather than inhibit shoot and root growth.
Journal ArticleDOI
Increased Endogenous Abscisic Acid Maintains Primary Root Growth and Inhibits Shoot Growth of Maize Seedlings at Low Water Potentials
TL;DR: The results indicate that ABA accumulation plays direct roles in both the maintenance of primary root elongation and the inhibition of shoot elongation at low water potentials.
Journal ArticleDOI
A Positive Root-sourced Signal as an Indicator of Soil Drying in Apple, Malus x domestica Borkh.
TL;DR: The alleviation of this inhibition by the excision of roots in dry soil, is taken as evidence of a positive inhibitor, produced by drying roots, influencing shoot growth.