Plant Toxins and Palatability to Herbivores
نویسندگان
چکیده
منابع مشابه
Gut microbes of mammalian herbivores facilitate intake of plant toxins.
The foraging ecology of mammalian herbivores is strongly shaped by plant secondary compounds (PSCs) that defend plants against herbivory. Conventional wisdom holds that gut microbes facilitate the ingestion of toxic plants; however, this notion lacks empirical evidence. We investigated the gut microbiota of desert woodrats (Neotoma lepida), some populations of which specialise on highly toxic c...
متن کاملExperience matters: prior exposure to plant toxins enhances diversity of gut microbes in herbivores.
For decades, ecologists have hypothesised that exposure to plant secondary compounds (PSCs) modifies herbivore-associated microbial community composition. This notion has not been critically evaluated in wild mammalian herbivores on evolutionary timescales. We investigated responses of the microbial communities of two woodrat species (Neotoma bryanti and N. lepida). For each species, we compare...
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Herbivorous insects use diverse feeding strategies to obtain nutrients from their host plants. Rather than acting as passive victims in these interactions, plants respond to herbivory with the production of toxins and defensive proteins that target physiological processes in the insect. Herbivore-challenged plants also emit volatiles that attract insect predators and bolster resistance to futur...
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Most recent investigations have focused on induced, rather than constitutive, plant defenses. Yet significant research has helped to illuminate some of the principal characteristics of constitutive defenses, including mechanisms of action and synergistic effects, as well as strategies used by herbivores and pathogens to circumvent them.
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Diego Carmona*, Marc J. Lajeunesse and Marc T.J. Johnson Departamento de Ecologı́a Evolutiva, Instituto de Ecologı́a, Universidad Nacional Autónoma de México. Ap. Postal 70-275. CP 04510. México Distrito Federal, México; National Evolutionary Synthesis Center, 2024 W. Main St. A200, Durham, North Carolina 27705, USA; and Department of Plant Biology, North Carolina State University, Box 7612, Rale...
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ژورنال
عنوان ژورنال: Journal of Range Management
سال: 1992
ISSN: 0022-409X
DOI: 10.2307/4002519