Chromosomal packaging is maintained by supercoiling of DNA in case of bacteria

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#Id: 10253

#Unit 6. System Physiology – Plant

PYR/PYL/RCARs function as cytoplasmic ABA receptors and inhibit PP2C‐mediated inactivation of SnRK2 in an ABA‐dependent manner

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#Unit 6. System Physiology – Plant

SnRK2s are activated by dehydration, salinity, and ABA

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#Id: 10255

#Unit 6. System Physiology – Plant

The synthesis of Group 3 D‐7 family* LEA proteins, storage proteins, and lipids is promoted by ABA

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#Id: 10256

#Unit 6. System Physiology – Plant

Precocious germination in the ABA-deficient vp14 mutant of maize. The VP14 protein catalyzes the cleavage of 9-cis-epoxycarotenoids to form xanthoxal, a precursor of ABA. 

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#Id: 10257

#Unit 6. System Physiology – Plant

when seed abscisic acid (ABA) content is highest 

Accumulation of disaccharides and oligosaccharides

Synthesis of storage proteins

Synthesis of late-embryogenesis-abundant (LEA) proteins

Synthesis of small heat shock proteins (smHSPs)

Activation of antioxidative defenses

Changes in the physical structure of cells

Gradual increase in cell density

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#Id: 10258

#Unit 6. System Physiology – Plant

ABA is transported by both the xylem and the phloem, but it is normally much more abundant in the phloem sap