Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, China.
Department of Crop and Soil Sciences, Malheur Experiment Station, Oregon State University, Ontario, Oregon, USA.
J Econ Entomol. 2022 Oct 12;115(5):1620-1626. doi: 10.1093/jee/toac131.
Host plant species will influence the population and physiological performance of insects. Frankliniella occidentalis is a well-known invasive pest commonly found on flowering plants. Herein, the population development of F. occidentalis was investigated on the flowers of different Rosa chinensis cultivars (Ruby, Love, Parade, Pink Peace, and Mohana), and the digestive enzyme activities in thrips were measured after feeding on these flowers. The developmental times of F. occidentalis from egg to adult were 10.07, 10.37, 11.64, 10.66, and 10.90 d on Ruby, Love, Parade, Pink Peace, and Mohana, respectively. Significant differences in fecundity were also observed, with the greatest fecundity levels of F. occidentalis on Ruby (82.96) and the lowest on Mohana (63.40). F. occidentalis showed the greatest R0 on Ruby (43.57), followed by Love (36.46), Parade (33.00), Pink Peace (27.97), and Mohana (23.21). The rm showed a similar trend, with values of 0.156, 0.145, 0.141, 0.134, and 0.130, respectively. There were significant differences in digestive enzyme activities in F. occidentalis on different flowers, and different digestive enzymes showed different performance among these plants. The highest amylase and lipase activities in F. occidentalis were on Ruby, on which F. occidentalis had the fastest development rate and the highest R0, whereas the highest trypsin activity was on Pink Peace. All three digestive enzymes in thrips showed the lowest activities on Mohana. The varied population development of F. occidentalis associated with R. chinensis cultivars may be related to their digestive enzyme performance, which plays important roles in nutrient metabolism and insect growth.
寄主植物种类会影响昆虫的种群和生理表现。西方花蓟马是一种常见的入侵害虫，通常在开花植物上发现。在此，研究了西方花蓟马在不同月季（Ruby、Love、Parade、Pink Peace 和 Mohana）花朵上的种群发育情况，并测量了蓟马在吸食这些花朵后的消化酶活性。西方花蓟马从卵到成虫的发育时间分别为 Ruby 上的 10.07、10.37、11.64、10.66 和 10.90 d，Love 上的 10.37、11.64、10.66、10.90 和 10.66 d，Parade 上的 11.64、10.66、10.90、10.66 和 10.37 d，Pink Peace 上的 10.66、10.90、10.66、10.37 和 10.07 d，Mohana 上的 10.90、10.66、10.37、10.07 和 10.07 d。在 Ruby 上，西方花蓟马的产卵量最大（82.96），在 Mohana 上产卵量最小（63.40）。西方花蓟马在 Ruby 上的最大 R0 值最高（43.57），其次是 Love（36.46）、Parade（33.00）、Pink Peace（27.97）和 Mohana（23.21）。rm 值也呈现出类似的趋势，分别为 0.156、0.145、0.141、0.134 和 0.130。在不同的花上，西方花蓟马的消化酶活性有显著差异，不同的消化酶在这些植物中的表现也不同。在 Ruby 上，西方花蓟马的淀粉酶和脂肪酶活性最高，其发育速度最快，R0 值最高，而在 Pink Peace 上，其胰蛋白酶活性最高。在 Mohana 上，三种消化酶在蓟马中的活性最低。西方花蓟马种群在与月季品种相关的不同发育可能与其消化酶表现有关，消化酶在营养代谢和昆虫生长中起着重要作用。
