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Regulators of PP2C Phosphatase Activity Function as Abscisic Acid Sensors
ABA Receptor Rumbled? The plant hormone abscisic acid (ABA) is critical for normal development and for mediating plant responses to stressful environmental conditions. Now, two papers presentExpand
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Phytochelatins, the heavy-metal-binding peptides of plants, are synthesized from glutathione by a specific gamma-glutamylcysteine dipeptidyl transpeptidase (phytochelatin synthase).
An enzyme has been discovered and characterized from Silene cucubalus cell suspension cultures that catalyzes the transfer of the gamma-glutamylcysteine dipeptide moiety of glutathione to an acceptorExpand
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ABA perception and signalling.
Plant productivity is continuously challenged by pathogen attack and abiotic stress such as drought and salt stress. The phytohormone abscisic acid (ABA) is a key endogenous messenger in plants'Expand
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Phytochelatins, a class of heavy-metal-binding peptides from plants, are functionally analogous to metallothioneins.
Phytochelatins are a class of heavy-metal-binding peptides previously isolated from cell suspension cultures of several dicotyledonous and monocotyledonous plants. These peptides consist ofExpand
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Detoxification of arsenic by phytochelatins in plants.
As is a ubiquitous element present in the atmosphere as well as in the aquatic and terrestrial environments. Arsenite and arsenate are the major forms of As intoxication, and these anions are readilyExpand
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Phytochelatins: The Principal Heavy-Metal Complexing Peptides of Higher Plants
A set of novel heavy-metal complexing peptides was isolated from plant cell suspension cultures; the structure of the peptides was established as (γ-glutamic acid-cysteine)n-glycine (n = 3 to 7).Expand
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A hydraulic signal in root-to-shoot signalling of water shortage.
Photosynthesis and biomass production of plants are controlled by the water status of the soil. Upon soil drying, plants can reduce water consumption by minimizing transpiration through stomata, theExpand
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Homeodomain protein ATHB6 is a target of the protein phosphatase ABI1 and regulates hormone responses in Arabidopsis
ABI1, a protein phosphatase 2C, is a key component of signal transduction in Arabidopsis. It regulates diverse responses to the phytohormone abscisic acid (ABA) such as stomatal closure, seedExpand
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Relay and control of abscisic acid signaling.
Insights into the signal transduction of the phytohormone abscisic acid (ABA) have unfolded dramatically in the past few years and reveal an unanticipated complexity. Knockout lines andExpand
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A protein phosphatase 2C involved in ABA signal transduction in Arabidopsis thaliana.
The plant hormone abscisic acid (ABA) mediates various responses such as stomatal closure, the maintenance of seed dormancy, and the inhibition of plant growth. All three responses are affected inExpand
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