Effects of Host Plants on Activities of Detoxification and Protective Enzymes in Three Rice Planthoppers
Year: 2011
Type: article
Abstract: The effects of host plants on survival and activities of detoxification and protective enzymes of three rice planthoppers(Nilaparvata lugens,Sogatella furcifera and Laodelphax striatellus) were investigated with five host plants including four rice varieties [TN1,IR42,Rathu Heenati(RHT) and Wuyujing 3] and one weed barnyardgrass.The survival rate of the three planthoppers significantly varied with host plants.N.lugens had the highest survival rate on TN1,followed by on IR42 and Wuyujing 3,and on RHT and barnyardgrass.However,S.furcifera and L.striatellus had significantly higher survival rate on TN1 as well as on Wuyujing 3 and barnyardgrass,and substantially lower survival rate on RHT and IR42.Among the three planthoppers,the activities of glutathione S-transferase and microsomal mixed-function oxidases at the adult stage,and the activities of carboxylesterase,superoxide dismutase and peroxidase at both adult and nymph stages,significantly differed on various host plants,whereas the activities of glutathione S-transferase and microsomal mixed-function oxidases were similar at the nymph stage.The influence of host plants on the activities of these enzymes were also planthopper-related,with L.striatellus most affected,N.lugens the least affected,and S.furcifera moderately affected,which was in accordance with the host range of these planthoppers.However,it was also found that,even if the planthoppers fed on plants with similar host fitness,the enzyme activities varied among planthopper species,or even between the adult and nymph stages within a planthopper species.It is suggested that relations between the host plant fitness and the activities of detoxification and protective enzymes differed with species and developmental stage of planthoppers,and also with the type of host plants.
Source: Zhongguo shuidao kexue
Author: Luo Ju
Language: English
Subfield: Insect Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2363169620