Article
Plant Sciences
Deidra J. Jacobsen, Robert A. Raguso
Summary: The study reveals that plants use volatiles to attract pollinators while deterring herbivores, showing that vegetative and floral traits may interact to affect insect behavior. Pollinator behavior is likely influenced by leaf traits, and plant induction status plays a role in adult moth foraging and oviposition preferences.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Lang Ming, Yuan-Wen Du, Ge-Ge Yuan, Qi Su, Xiao-Bing Shi, Huan Yu, Gong Chen
Summary: Spodoptera litura larvae infected with HvAV-3h can alter the release of HIPVs in pepper plants, making them more attractive to other S. litura larvae.
PEST MANAGEMENT SCIENCE
(2023)
Article
Plant Sciences
Jun He, Rayko Halitschke, Meredith C. Schuman, Ian T. Baldwin
Summary: Light plays a crucial role in regulating the biosynthesis of volatile organic compounds in plants, particularly terpenoids and green leaf volatiles (GLVs) in N. attenuata. Light deprivation suppressed terpenoid emissions while enhancing GLV emissions, with a time lag. Additionally, silencing of specific genes affected the emission patterns of volatile compounds, highlighting the complexity of regulation mechanisms involved in plant-herbivore interactions.
Article
Plant Sciences
Dong Teng, Weixia Jing, Beibei Lv, Xinzheng Huang, Danyang Zhao, Junfeng Kou, Xiaohe Liu, Khalid Hussain Dhiloo, Yongjun Zhang
Summary: This study identified and confirmed the functions of two enzymes involved in the synthesis of methyl jasmonate (MeJA) in upland cotton. MeJA was found to induce the emission of plant volatiles and affect the behavioral responses of insect pests and their natural enemies. The antennae of parasitoid wasps also showed electrophysiological responses to MeJA and some volatiles. These findings provide insights into MeJA biosynthesis and defense regulation in upland cotton.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Diego B. Silva, Alejandro Jimenez, Alberto Urbaneja, Meritxell Perez-Hedo, Jose M. S. Bento
Summary: Infestation by B. tabaci facilitates subsequent infestations by conspecifics and mites, while infestation by T. urticae promotes herbivore-induced resistance.
PEST MANAGEMENT SCIENCE
(2021)
Article
Microbiology
Samira Lopez-Molina, Nathaly Alexandre do Nascimento, Maria Helena Neves Lobo Silva-Filha, Adan Guerrero, Jorge Sanchez, Sabino Pacheco, Sarjeet S. Gill, Mario Soberon, Alejandra Bravo
Summary: This study elucidates the mechanism of interaction between Cyt1Aa and Cry11Aa in mosquitos, as well as their behavior and effects in the gut. Cyt1Aa exerts its activity on the plasma membrane, while Cry11Aa toxin may involve additional intracellular effectors.
Article
Biochemistry & Molecular Biology
Kalpesh Nath Yajnik, Shradheya R. R. Gupta, Mansi Taneja, Indrakant K. Singh, Archana Singh
Summary: Plant yields are affected by biotic and abiotic stresses, with insect attack being a major concern. The use of pesticides to overcome the harmful effects of herbivory is not sustainable in the long run. This study aims to identify and understand the MAPK pathway involved in plant defense against herbivory and suggests potential interactions for further validation.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Biology
Heng Li, Liping Xu, Weiping Wu, Weizheng Peng, Yonggen Lou, Jing Lu
Summary: Previous studies have shown that brown planthopper (BPH) activates strong local defenses in rice. However, whether a BPH infestation elicits systemic responses in rice is still uncertain. By examining the change in transcript levels of 12 JA and/or SA signaling-responsive marker genes in rice tissues, we found that an infestation of gravid BPH females systemically activates JA- and SA-dependent defenses in rice, which may impact the composition and structure of the rice ecosystem.
Article
Plant Sciences
Xiaojing Xue, Tiantian Geng, Haifeng Liu, Wei Yang, Weiran Zhong, Zhiliang Zhang, Changxiang Zhu, Zhaohui Chu
Summary: Silicon treatment enhances potato resistance to late blight by inducing reactive oxygen species production and pathogenesis-related genes expression. The involvement of ethylene and jasmonic acid in Si-mediated late blight resistance is demonstrated.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Yu Pan, Zhun Wang, Shi-Wen Zhao, Xiao Wang, Yun-Shuo Li, Jia-Nan Liu, Shang Wang, Jing-Hui Xi
Summary: After Holotrichia parallela larva feeding, maize roots produced changes in phytohormones and volatiles, with tetradecane potentially serving as a potent defense induction signal that increases plant resistance to the larvae.
PEST MANAGEMENT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Laura O. Marmolejo, Morgan N. Thompson, Anjel M. Helms
Summary: Plants emit herbivore-induced plant volatiles (HIPVs) in response to herbivory, which play essential roles in plant defense. Different herbivore species induce specific blends of HIPVs that can affect plant resistance responses.
JOURNAL OF CHEMICAL ECOLOGY
(2021)
Article
Plant Sciences
Tingfa Dong, Rong Zhang, Junyan Liu, Joshua C. Fowler, Tom E. X. Miller, Xiao Xu
Summary: Climate warming has been found to increase forest insect herbivory, which has important consequences for plant species. Dioecious species show sexual differences in defense against herbivorous insects, with females experiencing higher leaf herbivory under warming due to decreases in induced defense responses.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Review
Plant Sciences
Lingfei Hu
Summary: Plants utilize the integration of multiple volatile compounds to predict future herbivore attacks, enhancing their defense capacity through downstream signal transduction and hormonal crosstalk. Exploring this integration can deepen our understanding and utilization of chemical information transfer in plants.
Article
Ecology
Katerina Sam, Eliska Kovarova, Inga Freiberga, Henriette Uthe, Alexander Weinhold, Leonardo R. Jorge, Rachakonda Sreekar
Summary: The research demonstrates that great tits can learn to identify herbivore-induced plant volatiles (HIPVs) as an indicator of food reward, rather than it being an innate ability. They are able to associate HIPVs with food reward through learning, but are not capable of generalizing this ability among different tree species.
ECOLOGY AND EVOLUTION
(2021)
Article
Plant Sciences
Chaoyi Hu, Chunyu Wei, Qiaomei Ma, Han Dong, Kai Shi, Yanhong Zhou, Christine H. Foyer, Jingquan Yu
Summary: Jasmonates (JAs) are crucial phytohormones in plant defense, induced by herbivory. Ethylene (ET) and JA production in response to herbivory in tomato leaves are regulated by ETHYLENE RESPONSE FACTOR 15 (ERF15) and ERF16, acting as transcriptional activators of key genes in JA biosynthesis. The results suggest that ET signaling plays a role in the rapid induction of the JA burst in plants under herbivore attack.