Direct and Indirect Consumption of Tannic Acid Impedes the Development and Survival of Parasitoid when Parasitizing Cotton Bollworm (Lepidoptera: Noctuidae)

Yang, Yuhui; Michaud, J.P.; Guan, Xin; Cao, Jinjun; Li, Z.; Yang, Qingliang; Zhang, Q. W.; Liu, Xiao Xia

doi:10.1093/aesa/saw062

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…As natural tobacco leaves presented traceable level of tested stimulants [34,35], it highly suggested that sucrose and glucose exhibit a significant preference for feeding on leaf discs, while nicotine and tannic acid suppress the feeding behavior of potato tuber moth larvae. These findings are similar to the feeding choices observed in other lepidopteran insects [36][37][38][39][40]. Sugars such as sucrose and glucose are crucial metabolic products of plant photosynthesis and play a vital role in the feeding behavior of Lepidoptera insects.…”

Section: Discussionsupporting

confidence: 84%

Caterpillar Responses to Gustatory Stimuli in Potato Tuber Moths: Electrophysiological and Behavioral Insights

Mu,

Tang,

Zhao

et al. 2023

Life

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This research investigates how fourth-instar larvae of the potato tuber moth, Phthorimaea operculella, respond to plant secondary metabolites (sucrose, glucose, nicotine, and tannic acid) both in terms of gustatory electrophysiology and feeding behavior. The objective is to establish a theoretical foundation for employing plant-derived compounds in potato tuber moth control. We employed single-sensillum recording techniques and dual-choice leaf disk assays to assess the gustatory electrophysiological responses and feeding preferences of these larvae towards the mentioned compounds. Sensory neurons responsive to sucrose, glucose, nicotine, and tannic acid were identified in the larvae’s medial and lateral sensilla styloconica. Neuronal activity was influenced by stimulus type and concentration. Notably, the two types of sensilla styloconica displayed distinct response patterns for sucrose and glucose while they had similar firing patterns towards nicotine and tannic acid. Sucrose and glucose significantly promoted larval feeding, while nicotine and tannic acid had significant inhibitory effects. These findings demonstrate that the medial and lateral sensilla styloconica house sensory neurons sensitive to both feeding stimulants and inhibitors, albeit with differing response profiles and sensitivities. This study suggests that sucrose and glucose are promising candidates for feeding stimulants, while nicotine and tannic acid show potential as effective feeding inhibitors of P. operculella larvae.

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Section: Discussionsupporting

confidence: 84%

Caterpillar Responses to Gustatory Stimuli in Potato Tuber Moths: Electrophysiological and Behavioral Insights

Mu,

Tang,

Zhao

et al. 2023

Life

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“…Tannins are ubiquitous secondary plant compounds that reduce protein metabolism in animals feeding upon them, slowing their development and likely reducing their overall food consumption and survival [ 97 ]. In terrestrial plants, tannins are the fourth most important group of compounds after cellulose, hemicelluloses, and lignin [ 42 ].…”

Section: The Toxinsmentioning

confidence: 99%

“…As a result of feeding on tannin-rich food, the tissues of herbivorous insects will also come to contain tannins. Yang et al [ 97 ] demonstrated that tannic acid in the diet of host larvae has detrimental effects on the fitness of the microgastrine braconid wasp Microplitis mediator , and Roth et al [ 98 ] found similar effects with the gypsy moth, Lymantria dispar , and its microgastrine parasitoid Cotesia melanoscelus . This parasitoid species is a koinobiont endoparasitoid attacking various pest Lepidopterans, including Helicoverpa armigera (Lepidoptera: Noctuidae).…”

Section: The Toxinsmentioning

confidence: 99%

Dietary Challenges for Parasitoid Wasps (Hymenoptera: Ichneumonoidea); Coping with Toxic Hosts, or Not?

Quicke

Moghaddam

Butcher

2023

Toxins

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Many insects defend themselves against predation by being distasteful or toxic. The chemicals involved may be sequestered from their diet or synthesized de novo in the insects’ body tissues. Parasitoid wasps are a diverse group of insects that play a critical role in regulating their host insect populations such as lepidopteran caterpillars. The successful parasitization of caterpillars by parasitoid wasps is contingent upon their aptitude for locating and selecting suitable hosts, thereby determining their efficacy in parasitism. However, some hosts can be toxic to parasitoid wasps, which can pose challenges to their survival and reproduction. Caterpillars employ a varied array of defensive mechanisms to safeguard themselves against natural predators, particularly parasitoid wasps. These defenses are deployed pre-emptively, concurrently, or subsequently during encounters with such natural enemies. Caterpillars utilize a range of strategies to evade detection or deter and evade attackers. These tactics encompass both measures to prevent being noticed and mechanisms aimed at repelling or eluding potential threats. Post-attack strategies aim to eliminate or incapacitate the eggs or larvae of parasitoids. In this review, we investigate the dietary challenges faced by parasitoid wasps when encountering toxic hosts. We first summarize the known mechanisms through which insect hosts can be toxic to parasitoids and which protect caterpillars from parasitization. We then discuss the dietary adaptations and physiological mechanisms that parasitoid wasps have evolved to overcome these challenges, such as changes in feeding behavior, detoxification enzymes, and immune responses. We present new analyses of all published parasitoid–host records for the Ichneumonoidea that attack Lepidoptera caterpillars and show that classically toxic host groups are indeed hosts to significantly fewer species of parasitoid than most other lepidopteran groups.

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Direct and Indirect Consumption of Tannic Acid Impedes the Development and Survival of Parasitoid when Parasitizing Cotton Bollworm (Lepidoptera: Noctuidae)

Cited by 2 publications

References 27 publications

Caterpillar Responses to Gustatory Stimuli in Potato Tuber Moths: Electrophysiological and Behavioral Insights

Caterpillar Responses to Gustatory Stimuli in Potato Tuber Moths: Electrophysiological and Behavioral Insights

Dietary Challenges for Parasitoid Wasps (Hymenoptera: Ichneumonoidea); Coping with Toxic Hosts, or Not?

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