Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 31.3, Problem 1CC
Summary Introduction

To explain:

Why plants with mutant that produce excessive abscisic acid (ABA) are warmer than wild-types under normal, non-stressful circumstances.

Concept introduction:

ABA is a plant stress hormone that helps the plant to overcome drought conditions. It does so by helping in the closing of stomata. ABA causes water to flow out of guard cell and thus lessen its turgor. Hence, the stomata close.

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