The effects of mepiquat chloride (DPC) on the soluble protein content and the activities of protective enzymes in cotton in response to aphid feeding and on the activities of detoxifying enzymes in aphids

Mepiquat chloride (DPC) enhances the resistance of cotton plants, and it is widely used as a growth regulator. DPC can stimulate photosynthesis, stabilize the structure of cotton leaves, and affect population reproduction and energy substances in Aphis gossypii Glover (cotton aphids), but interactio...

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Bibliographic Details
Published in:BMC plant biology 2022-04, Vol.22 (1), p.213-213, Article 213
Main Authors: Zhang, Quan-Cheng, Deng, Xiao-Xia, Wang, Jun-Gang
Format: Article
Language:English
Subjects:
Acetylcholinesterase
Analysis
Animals
Aphididae
Aphidoidea
Aphids
Aphids - physiology
Aphis gossypii
Carboxylesterase
Catalase
Chloride resistance
Chlorides
Control
Cotton
Data processing
Defense mechanisms
Detoxification
Detoxifying enzymes
energy
Enzymatic activity
Enzyme activity
Enzymes
Glutathione
Glutathione transferase
Gossypium
Growth regulators
Identification and classification
Insects
mepiquat
Mepiquat chloride (DPC)
Metabolites
Nutrient content
Peroxidase
Pest resistance
Photosynthesis
Physiological responses
Physiology
Piperidines
Population density
Protective enzymes
protein content
Proteins
reproduction
Resistance ability
Superoxide Dismutase
Toxicity
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Summary:Mepiquat chloride (DPC) enhances the resistance of cotton plants, and it is widely used as a growth regulator. DPC can stimulate photosynthesis, stabilize the structure of cotton leaves, and affect population reproduction and energy substances in Aphis gossypii Glover (cotton aphids), but interactions between DPC and cotton aphids remain unclear. In this study, we analyzed the physiological responses of cotton to DPC, and the toxicity of DPC toward cotton aphids, before and after feeding, to explore the DPC-induced defense mechanism against cotton aphids. Measurements of protective enzyme activity in cotton showed that the soluble protein contents, peroxidase (POD) activity, and catalase (CAT) activity in cotton treated with different concentrations of DPC were higher than in the control. Superoxide dismutase (SOD) activity was higher than that of the control when the concentration of DPC was 
ISSN:1471-2229
1471-2229
DOI:10.1186/s12870-022-03597-7