2022
DOI: 10.3390/insects13100872
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Evaluating the Toxic Effects of Tannic Acid Treatment on Hyphantria cunea Larvae

Abstract: To increase the development potential of botanical pesticides, it is necessary to expand the toxicology research on plant secondary metabolites. Herein, the Hyphantria cunea larvae were exposed to tannic acid concentrations consistent with those found in larch needles, and, subsequently, the growth and nutrient utilization, oxidative damage, and detoxification abilities in the larval midgut, as well as the changes in the gut microbiome, were analyzed. Our results revealed that tannic acid treatment significant… Show more

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Cited by 11 publications
(10 citation statements)
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“…A highly alkaline midgut environment is also thought to enable the enzymatic activity of certain proteinases which can release amino acids from soil humic acid, as suggested by studies in this species (Zhang and Brune, 2004). High midgut pH may also be an adaptation to dietary tannins, although the possible effects of tannins on insects, such as inhibiting feeding, toxic effects or inhibiting digestion, has been a long contested issue (Ayres et al, 1997; Barbehenn and Constabel, 2011; Barbehenn et al, 2009a; Barbehenn et al, 2009b; Berenbaum, 1980; Bernays, 1978; Bernays et al, 1980; Bernays and Chamberlain, 1980; Bernays et al, 1981; Feeny, 1970; Feeny, 1968; Forkner et al, 2004; Karowe, 1989; Klocke and Chan, 1982; Martin et al, 1985; Rossiter et al, 1988; Tan et al, 2022).…”
Section: Discussionmentioning
confidence: 99%
“…A highly alkaline midgut environment is also thought to enable the enzymatic activity of certain proteinases which can release amino acids from soil humic acid, as suggested by studies in this species (Zhang and Brune, 2004). High midgut pH may also be an adaptation to dietary tannins, although the possible effects of tannins on insects, such as inhibiting feeding, toxic effects or inhibiting digestion, has been a long contested issue (Ayres et al, 1997; Barbehenn and Constabel, 2011; Barbehenn et al, 2009a; Barbehenn et al, 2009b; Berenbaum, 1980; Bernays, 1978; Bernays et al, 1980; Bernays and Chamberlain, 1980; Bernays et al, 1981; Feeny, 1970; Feeny, 1968; Forkner et al, 2004; Karowe, 1989; Klocke and Chan, 1982; Martin et al, 1985; Rossiter et al, 1988; Tan et al, 2022).…”
Section: Discussionmentioning
confidence: 99%
“…Digestive enzymes, including ALP, ACP, and LDH, play vital roles in insect pests, primarily in their digestive processes and overall physiology. Inhibiting or disrupting these vital enzymes may impair an insect's ability to digest food and obtain necessary nutrients, possibly diminishing its fitness and survival (Zhang et al 2023). Sub-lethal doses of Ex-Fl and Ex-Fa reduced the rates of major digestive enzymes in the cotton pest in a treatment dosage-dependent manner.…”
Section: Discussionmentioning
confidence: 99%
“…Red earthworms (E. foetida) are commonly used as model ecotoxicology organisms due to their sensitivity to different ecological stressors. Their responses to toxic compounds can provide insight into the latent impacts on other beneficial, non-target soil species (Vasantha-Srinivasan et al 2018;Zhang et al 2023)…”
Section: Discussionmentioning
confidence: 99%
“…While the impact of tannins on caterpillar growth, survival, or gut physiology has been extensively studied ( 21 , 25 , 27 , 28 ), the effect on their gut microbiome has been neglected [but see references ( 29 , 30 )]. Significant changes in gut microbiome composition have been reported under tannin exposure in larval insects ( 29 , 31 ) and vertebrates ( 32 ), including humans ( 33 ).…”
Section: Introductionmentioning
confidence: 99%
“…While the impact of tannins on caterpillar growth, survival, or gut physiology has been extensively studied ( 21 , 25 , 27 , 28 ), the effect on their gut microbiome has been neglected [but see references ( 29 , 30 )]. Significant changes in gut microbiome composition have been reported under tannin exposure in larval insects ( 29 , 31 ) and vertebrates ( 32 ), including humans ( 33 ). To deepen our understanding of the role of tannins in plant–herbivore interactions, manipulative experiments controlling tannin levels are needed, as most studies have relied on correlations ( 34 ).…”
Section: Introductionmentioning
confidence: 99%