NDLI: Jasmonic Acid Enhances Plant Cyanogenesis and Resistance to Herbivory in Lima Bean

Content Provider	Springer Nature Link
Author	Kautz, Stefanie Trisel, Julie A. Ballhorn, Daniel J.
Copyright Year	2014
Abstract	Jasmonic acid (JA) is a natural plant hormone ubiquitously distributed in plants and centrally involved in the induction of direct and indirect plant defenses. Defenses up-regulated by this hormone include trichomes—a direct, mechanical defense—and alkaloids—a direct chemical defense—as well as two indirect chemical defenses: volatile organic compounds (VOCs) and extrafloral nectar (EFN). Plant cyanogenesis—the release of toxic hydrogen cyanide (HCN) from preformed cyanogenic precursors in fruits, leaves, and seeds of many plants—is recognized as a direct, constitutive plant defensive trait, and is among the most widely distributed of all direct chemical plant defenses. The cyanogenic system in plants is composed of three parameters: The cyanogenic potential (HCNp; concentration of cyanogenic precursors), β-glucosidase activity, and cyanogenic capacity (HCNc; release of gaseous hydrogen cyanide). Here, we demonstrated that experimental application of aqueous solutions of JA ranging from 0.001 to 1.0 mmol L$^{−1}$, as well as insect herbivory significantly enhanced HCNc via the induction of β-glucosidase activity in wild lima bean (Phaseolus lunatus L.). In choice feeding trials with JA induced and damaged leaves, adult Mexican bean beetles—natural herbivores of lima bean—rejected leaves with enhanced β-glucosidase activity and HCNc. Our findings suggest that jasmonic acid plays a critical role in regulating activity of β-glucosidases, which determines the rate of cyanogenesis, and thus mediates direct plant defense against herbivores.
Starting Page	1186
Ending Page	1196
Page Count	11
File Format	PDF
ISSN	00980331
Journal	Journal of Chemical Ecology
Volume Number	40
Issue Number	11-12
e-ISSN	15731561
Language	English
Publisher	Springer US
Publisher Date	2014-11-16
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Induced defense Cyanogenesis Herbivory Mexican bean beetle Epilachna varivestis Phaseolus lunatus Ecology Biochemistry Entomology Biological Microscopy Agriculture
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Quantitative Effects of Cyanogenesis on an Adapted Herbivore

Oviposition Choice of Mexican Bean Beetle (Epilachna varivestis) Depends on Host Plants Cyanogenic Capacity

Phenotypic Plasticity of Cyanogenesis in Lima Bean Phaseolus lunatus—Activity and Activation of β-Glucosidase

Constraints of Simultaneous Resistance to a Fungal Pathogen and an Insect Herbivore in Lima Bean (Phaseolus lunatus L.)

Quantitative Variability of Direct Chemical Defense in Primary and Secondary Leaves of Lima Bean (Phaseolus lunatus) and Consequences for a Natural Herbivore

Co-Variation of Chemical and Mechanical Defenses in Lima Bean (Phaseolus lunatus L.)

Herbivore damage induces a transgenerational increase of cyanogenesis in wild lima bean (Phaseolus lunatus)

Quantitative Effects of Leaf Area Removal on Indirect Defense of Lima Bean (Phaseolus lunatus) in Nature

Intraspecies Variation in the Kanzawa Spider Mite Differentially Affects Induced Defensive Response in Lima Bean Plants

Jasmonic Acid Enhances Plant Cyanogenesis and Resistance to Herbivory in Lima Bean

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