Antixenosis by a resistant Musa cultivar to stem borer Odoiporus longicollis attack and expression of microsomal α-amylase by the pest

Ajitha, T; Gayathri, R; Asirvadam, Evans Dassammal

doi:10.1007/s12038-023-00331-9

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…α-Amylase inhibitors, classified as plant-derived toxic proteins, are produced by various parts of plants, including roots, tubers, stems, fruits, buds, and leaves [62]. For example, the banana pseudo-stem weevil, Odoiporus longicollis Olivier, larva gains the ability to resist the toxicity of stigmasterol-3-O-glucoside (SOG), sulfoquinovosyl diacylglycerol (SQDG), and betulinic acid (BA) produced by pseudo-stems through synthesizing excess α-amylase [63]. In addition, an α-amylase inhibitor extracted from Moringa oleifera leaf has insecticidal effects on Callosobruchus maculates insect larvae [64] α-Amylase inhibitors (α-AIs) have been classified by Richardson into six classes according to their tertiary structure: lectin-like, knottin-like, cereal-like, Kunitz-like, γpurothionin-like, and thaumatin-like [16].…”

Section: Insect α-Amylase Inhibitorsmentioning

confidence: 99%

Insect α-Amylases and Their Application in Pest Management

Wang,

Huang,

Cao

et al. 2023

Molecules

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Amylase is an indispensable hydrolase in insect growth and development. Its varied enzymatic parameters cause insects to have strong stress resistance. Amylase gene replication is a very common phenomenon in insects, and different copies of amylase genes enable changes in its location and function. In addition, the classification, structure, and interaction between insect amylase inhibitors and amylases have also invoked the attention of researchers. Some plant-derived amylase inhibitors have inhibitory activities against insect amylases and even mammalian amylases. In recent years, an increasing number of studies have clarified the effects of pesticides on the amylase activity of target and non-target pests, which provides a theoretical basis for exploring safe and efficient pesticides, while the exact lethal mechanisms and safety in field applications remain unclear. Here, we summarize the most recent advances in insect amylase studies, including its sequence and characteristics and the regulation of amylase inhibitors (α-AIs). Importantly, the application of amylases as the nanocide trigger, RNAi, or other kinds of pesticide targets will be discussed. A comprehensive foundation will be provided for applying insect amylases to the development of new-generation insect management tools and improving the specificity, stability, and safety of pesticides.

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