西花蓟马生长发育及其与寄主花化学物质的关系
西花蓟马生长发育及其与寄主花化学物质的关系
曹宇, 刘燕1, 梁文琴2, 王春1, 李灿1, 1.贵阳学院生物与环境工程学院/有害生物控制与资源利用贵州省教育厅特色重点实验室 贵阳 550005
2.贵州省疾病预防控制中心 贵阳 550004
基金项目: 贵州省联合基金(黔科合LH[2014]7178号)、贵州省高校特色重点实验室平台建设项目(黔教合KY字[2011]001, 黔教合KY字[2012]013)和贵州省教育厅重点学科项目(黔学位合字ZDXK[2013]08)资助
计量 文章访问数: 01384 HTML全文浏览量: 056 PDF下载量: 01371 出版历程 收稿日期: 2014-10-27 修回日期: 2015-03-08 刊出日期: 2015-04-30Development of Frankliniella occidentalis on flowers of different horticultural hosts and relationship with flower compounds
1.Department of Biology and Environment Engineering, Guiyang University / Key & Special Laboratory for Pest Control and Resource Utilization of Guizhou Education Department, Guiyang 550005, China
2.Guizhou Center for Disease Control and Prevention, Guiyang 550004, China
摘要
摘要: 为明确寄主对西花蓟马(Frankliniella occidentalis)生长发育的影响, 采用非自由选择法, 研究了西花蓟马在月季、康乃馨、百合、天竺葵及牵牛等5种植物花上的生长发育及存活差异, 及其与寄主营养物质(可溶性蛋白质、糖)、次生物质(单宁酸、黄酮和总酚)含量的相关性。结果表明, 西花蓟马在5种植物的花上不同阶段的生长发育及存活都有不同程度的显著性差异。总体来说, 西花蓟马在月季花上发育最快(整个未成熟期为11.02 d), 牵牛花上发育最慢(整个未成熟期为13.21 d); 世代存活率在百合花上最高(84%), 天竺葵上最低(76%); 寄主的营养物质、次生物质含量也存在显著性差异。相关分析表明, 西花蓟马的发育速率与寄主的可溶性蛋白质含量存在显著正相关关系(R=0.896, P=0.040), 与单宁酸(R= 0.917, P=0.01)、黄酮(R= 0.921, P=0.014)及总酚含量(R= 0.905, P=0.013)存在显著的负相关关系, 与可溶性含糖量无显著相关关系(R=0.40, P=0.505); 西花蓟马的存活率与寄主的各类化学物质均无显著相关关系。因此, 寄主花的蛋白质含量越高, 对西花蓟马的生长发育越有利, 而单宁酸、黄酮及总酚含量越高, 则不利于其生长发育。
Abstract: The western flower thrips, Frankliniella occidentalis (Pergande), is one of the pests with most adverse effects on global crop production. F. occidentalis is also a key invasive pest of vegetables, fruits and the wider horticultural and/or ornamental plants in China. It causes direct damage through feeding and ovipositioning, but also significant indirect losses by transmitting plant viruses. Significant plant damage by F. occidentalis has been observed in recent years with the degree of damage differing with plant species. This has made it extremely difficult to fully understand the differences in damage as a lot of factors relating with plants and insect pests. So far, there has been little research on F. occidentalis damages to horticultural host plants. In order to verify the effect of different horticultural host plants on the development of F. occidentalis, the development and survival of F. occidentalis on flowers of five horticultural plants (Rosa chinensis, Dianthus caryophyllus, Lilium brownie, Pelargonium hortorum/ and Pharbitis nil) were studied. The research also studied the relationships of F. occidentalis development with the contents of nutriments (soluble protein and soluble sugar) and secondary compounds (tannin, flavone and phenolic) of flowers of five horticultural plants. The results showed that the shortest time for F. occidentalis to complete one generation was on R. chinensis (11.02 days) and the longest was on P. nil (13.21 days). The survival rates of F. occidentalis at different stages were different on different flowers. In short, the highest generation survival rate was on L. brownie (84%) and the lowest was on P. hortorum (76%). There were also significant differences in the contents of nutriments and secondary compounds among the five host flowers. The highest content of soluble protein was in R. chinensis (12.39 mg·g-1), significantly higher than that in the other host flowers, while the lowest was in P. nil (4.57 mg·g-1). Soluble sugar content decreased in the order of L. brownie (6.83 mg·g-1), D. caryophyllus (6.15 mg·g-1), P. hortorum (4.26 mg·g-1), R. chinensis (3.38 mg·g 1) and P. nil (2.25 mg·g 1). Tannin content increased in the order of R. chinensis, D. caryophyllus, L. brownie, P. hortorum and P. nil. Both flavone and phenolic contents were highest in P. hortorum (respectively 6.01 mg·g 1 and 2.45 mg·g-1) and lowest in R. chinensis (respectively 2.88 mg·g-1 and 0.64 mg·g-1). Correlation analysis showed that while the developmental velocity of F. occidentalis was significantly positively correlated with the content of soluble protein (R = 0.896, P = 0.040), it was negatively correlated with the contents of tannin (R = 0.917, P = 0.01), flavone (R = 0.921, P = 0.014) and phenolic (R = 0.905, P = 0.013) of host flowers. There was no correlation between the rate of development of F. occidentalis and the content of soluble sugar of host flowers (R = 0.40, P = 0.505). Also the rate of survival of F. occidentalis had no significant correlation with any of the chemical compounds tested. It was therefore concluded that some of the chemical compounds of the host flowers had significant effect on the development of F. occidentalis. The higher the content of soluble protein, the more favorable the development of F. occidentalis. However, the higher the contents of tannin, flavone and phenolic, the less favorable the development of F. occidentalis.
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计量 文章访问数: HTML全文浏览量: PDF下载量: 出版历程 收稿日期: 2014-10-27 修回日期: 2015-03-08 刊出日期: 2015-04-30
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