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Cannabinoids function in defense against chewing herbivores in Cannabis sativa L.

Horticulture Research 2023年第11期10卷 131-140页

作者： George M.Stack Stephen I.Snyder Jacob A.Toth Michael A.Quade Jamie L.Crawford John K.McKay John Nicholas Jackowetz Ping Wang glenn philippe Julie L.Hansen Virginia M.Moore Jocelyn K.C.Rose Lawrence B.Smart Horticulture Section School of Integrative Plant ScienceCornell UniversityCornell AgriTechGenevaNY 14456United States Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaNY 14853United States Plant Breeding Section School of Integrative Plant ScienceCornell UniversityIthacaNY 14853United States Department of Agricultural Biology Colorado State UniversityFort CollinsCO 80523United States Cirona Labs GenevaNY 14456United States Department of Entomology Cornell UniversityCornell AgriTechGenevaNY 14456United States

In the decades since the first cannabinoids were identified by scientists,research has focused almost exclusively on the function and capacity of cannabinoids asmedicines and intoxicants for humans and other *** little is knownabout the adaptive value of cannabinoid production,though several hypotheses have been proposed including protection from ultraviolet radiation,pathogens,and *** test the prediction that genotypeswith greater concentrations of cannabinoidswill have reduced herbivory,a segregating F2 population of Cannabis sativa was leveraged to conduct lab-and field-based bioassays investigating the function of cannabinoids in mediating interactions with chewing *** the field,foliar cannabinoid concentration was inversely correlated with chewing herbivore *** detached leaves,Trichoplusia ni larvae consumed less leaf area and grew less when feeding on leaves with greater concentrations of *** electron and light microscopy were used to characterize variation in glandular trichome ***-free genotypes had trichomes that appeared *** isolate cannabinoids from confounding factors,artificial insect diet was amended with cannabinoids in a range of physiologically relevant *** grew less and had lower rates of survival as cannabinoid concentration *** results support the hypothesis that cannabinoids function in defense against chewing herbivores.

关键词： function founding ultraviolet

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