Peptidase inhibitor from Mucuna pruriens seeds inhibits the growth and development of Zeugodacus cucurbitae larvae

Zeugodacus cucurbitae (Coquillett) is an economically significant destructive pest of many vegetable and fruit crops. Peptidase inhibitors are a class of plant proteins that cause protein degradation and decrease the supply of amino acids, hampering insect pest growth and survival. To investigate th...

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Bibliographic Details
Published in:Phytoparasitica 2021-09, Vol.49 (4), p.645-657
Main Authors: Samiksha, Singh, Drishtant, Kesavan, Anup Kumar, Sohal, Satwinder Kaur
Format: Article
Language:English
Subjects:
Agriculture
Amino acids
Biodegradation
Biomedical and Life Sciences
Chemical pest control
Diet
Ecology
Experiments
Fruit crops
Fruits
Inhibitors
Insects
Larvae
Life Sciences
Midgut
Mucuna pruriens
Nutrition assessment
Original Article
Peptidase
Peptidases
Pest control
Pesticides
Pests
Plant Pathology
Plant Sciences
Proteins
Proteolysis
Seeds
Solvents
Survival
Weight reduction
Zeugodacus cucurbitae
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Summary:Zeugodacus cucurbitae (Coquillett) is an economically significant destructive pest of many vegetable and fruit crops. Peptidase inhibitors are a class of plant proteins that cause protein degradation and decrease the supply of amino acids, hampering insect pest growth and survival. To investigate the role of peptidase inhibitors in the control of this pest, the midgut peptidase activities and the growth and development of Z. cucurbitae larvae was studied when they were exposed to partially purified peptidase inhibitor from Mucuna pruriens (L.) DC. The results obtained showed a decline in larval survival, pupal weight and nutritional indices. The results also revealed that after 24, 48 and 72 h of treatment, peptidase inhibitor partially purified from M. pruriens seeds inhibited the complete proteolytic activity of larvae. It exerted effect on midgut peptidases at a stage where Z. cucurbitae larvae feed voraciously thereby prolonging the larval cycle and reducing pupal weight. These results provide quantitative information on the ability of peptidase inhibitors to control Z. cucurbitae and other destructive pest, avoiding chemical pesticides.
ISSN:0334-2123
1876-7184
DOI:10.1007/s12600-021-00901-3