您好,欢迎访问广东省农业科学院 机构知识库!

Tea green leafhopper infestations affect tea plant growth by altering the synthesis of brassinolide

文献类型: 外文期刊

作者: Gu, Dachuan 1 ; Wu, Shuhua 1 ; Wang, Yuxin 1 ; Yang, Yuhua 1 ; Chen, Jiaming 1 ; Mao, Kaiquan 1 ; Liao, Yinyin 1 ; Li, Jianlong 5 ; Zeng, Lanting 1 ; Yang, Ziyin 1 ;

作者机构: 1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, 723 Xingke Rd, Guangzhou 510650, Guangdong, Peoples R China

2.Chinese Acad Sci, State Key Lab Plant Divers & Specialty Crops, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China

3.Chinese Acad Sci, Key Lab, Natl Forestry & Grassland Adm Plant Conservat & Ut, South China Bot Garden, Guangzhou, Guangdong, Peoples R China

4.Univ Chinese Acad Sci, Coll Adv Agr Sci, Beijing, Peoples R China

5.Guangdong Acad Agr Sci, Tea Res Inst, Guangzhou, Guangdong, Peoples R China

关键词: Camellia sinensis; growth phenotype; transcription factor

期刊名称:PLANT CELL AND ENVIRONMENT ( 影响因子:7.3; 五年影响因子:8.1 )

ISSN: 0140-7791

年卷期: 2024 年

页码:

收录情况: SCI

摘要: Tea green leafhoppers are insects widely distributed in major tea-growing areas. At present, less attention has been paid to the study on effect of tea green leafhopper infestation on tea growth phenotype. In this study, tea green leafhoppers were used to treat tea branches in laboratory and co-treated with brassinolide (BL), the highest bioactivity of brassinosteroids (BRs), in tea garden. The results showed that the expression of genes related to BRs synthesis was inhibited and BL content was reduced in tea shoots after infestation by tea green leafhoppers. In addition, area of each leaf position, length and diameter of internodes, and the biomass of the tender shoots of tea plant were decreased after infestation by tea green leafhoppers. The number of trichomes, leaf thickness, palisade tissue thickness and cuticle thickness of tea shoots were increased after tea green leafhoppers infestation. BL spraying could partially recover the phenotypic changes of tea branches caused by tea green leafhoppers infestation. Further studies showed that tea green leafhoppers infestation may regulate the expression of CsDWF4 (a key gene for BL synthesis) through transcription factors CsFP1 and CsTCP1a, which finally affect the BL content. Moreover, BL was applied to inhibit the tea green leafhoppers infestation on tea shoots. In conclusion, our study revealed the effect of plant hormone BL-mediated tea green leafhoppers infestation on the growth phenotype of tea plants.

  • 相关文献
作者其他论文 更多>>