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13.  Didymellaceae species associated with tea plant (Camellia sinensis) in China.

Author

Wang, Yuchun, Tu, Yiyi, Chen, Xueling, Jiang, Hong, Ren, Hengze, Lu, Qinhua, Wei, Chaoling, and Lv, Wuyun

Subjects
TEA, SPECIES, PLANT diseases, GREENHOUSES, FOLIAGE plants, CHEMICAL plants
Abstract

Tea plant is one of the most important commercial crops worldwide. The Didymellaceae fungi can cause leaf blight disease of tea plant. In this study, 240 isolates were isolated from tea plant leaves of 10 provinces in China. Combined with multi-locus (ITS, LSU, RPB2 and TUB2) phylogenetic analysis and morphological characteristics, these isolates were identified as 25 species of six genera in Didymellaceae, including 19 known species Didymella coffeae-arabicae, D. pomorum, D. segeticola, D. sinensis, Epicoccum catenisporum, E. dendrobii, E. draconis, E. italicum, E. latusicollum, E. mackenziei, E. oryzae, E. poaceicola, E. rosae, E. sorghinum, E. tobaicum, Neoascochyta mortariensis, Paraboeremia litseae, Remotididymella anemophila and Stagonosporopsis caricae, of which 15 species were new record species and six novel species, named D. yunnanensis, E. anhuiense, E. jingdongense, E. puerense, N. yunnanensis and N. zhejiangensis. Amongst all isolates, D. segeticola was the most dominant species. Pathogenicity tests on tea plant leaves showed that E. anhuiense had the strongest virulence, while E. puerense had the weakest virulence. Besides, D. pomorum, D. yunnanensis, E. dendrobii, E. italicum, E. jingdongense, E. mackenziei, E. oryzae, E. rosae, E. tobaicum, N. mortariensis, N. yunnanensis, N. zhejiangensis and R. anemophila were non-pathogenic to the tea plant. [ABSTRACT FROM AUTHOR]

Published
2024
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14. The Laccase Family Gene CsLAC37 Participates in Resistance to Colletotrichum gloeosporioides Infection in Tea Plants.

Author

Li, Dangqiang, Zhang, Hongxiu, Zhou, Qianqian, Tao, Yongning, Wang, Shuangshuang, Wang, Pengke, Wang, Aoni, Wei, Chaoling, and Liu, Shengrui

Subjects
COLLETOTRICHUM gloeosporioides, ANTHRACNOSE, GENE families, TEA plantations, LACCASE, ARABIDOPSIS proteins, TEA
Abstract

Fungal attacks have become a major obstacle in tea plantations. Colletotrichum gloeosporioides is one of the most devastating fungal pathogens in tea plantations that can severely affect tea yield and quality. However, the molecular mechanism of resistance genes involved in anthracnose is still largely unknown in tea plants. Here, we found that the laccase gene CsLAC37 was involved in the response to fungal infection based on a transcriptome analysis. The full-length CDS of CsLAC37 was cloned, and its protein sequence had the closest relationship with the Arabidopsis AtLAC15 protein compared to other AtLACs. Tissue-specific expression analysis showed that CsLAC37 had higher expression levels in mature leaves and stems than in the other tissues. Subcellular localization showed that the CsLAC37 protein was predominantly localized in the cell membrane. The expression levels of CsLAC37 were upregulated at different time points under cold, salt, SA, and ABA treatments. qRT-PCR confirmed that CsLAC37 responded to both Pestalotiopsis-like species and C. gloeosporioides infections. Functional validation showed that the hydrogen peroxide (H2O2) content increased significantly, and POD activity decreased in leaves after antisense oligonucleotide (AsODN) treatment compared to the controls. The results demonstrated that CsLAC37 may play an important role in resistance to anthracnose, and the findings provide a theoretical foundation for molecular breeding of tea varieties with resistance to fungal diseases. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Draft genome sequence of Camellia sinensis var. sinensis provides insights into the evolution of the tea genome and tea quality

Author

Wei, Chaoling, Yang, Hua, Wang, Songbo, Zhao, Jian, Liu, Chun, Gao, Liping, Xia, Enhua, Lu, Ying, Tai, Yuling, She, Guangbiao, Sun, Jun, Cao, Haisheng, Tong, Wei, Gao, Qiang, Li, Yeyun, Deng, Weiwei, Jiang, Xiaolan, Wang, Wenzhao, Chen, Qi, Zhang, Shihua, Li, Haijing, Wu, Junlan, Wang, Ping, Li, Penghui, Shi, Chengying, Zheng, Fengya, Jian, Jianbo, Huang, Bei, Shan, Dai, Shi, Mingming, Fang, Congbing, Yue, Yi, Li, Fangdong, Li, Daxiang, Wei, Shu, Han, Bin, Jiang, Changjun, Yin, Ye, Xia, Tao, Zhang, Zhengzhu, Bennetzen, Jeffrey L., Zhao, Shancen, and Wan, Xiaochun

Published
2018

29. The tea plant reference genome and improved gene annotation using long-read and paired-end sequencing data

Author

Xia, Enhua, Li, Fangdong, Tong, Wei, Yang, Hua, Wang, Songbo, Zhao, Jian, Liu, Chun, Gao, Liping, Tai, Yuling, She, Guangbiao, Sun, Jun, Cao, Haisheng, Gao, Qiang, Li, Yeyun, Deng, Weiwei, Jiang, Xiaolan, Wang, Wenzhao, Chen, Qi, Zhang, Shihua, Li, Haijing, Wu, Junlan, Wang, Ping, Li, Penghui, Shi, Chengying, Zheng, Fengya, Jian, Jianbo, Huang, Bei, Shan, Dai, Shi, Mingming, Fang, Congbing, Yue, Yi, Wu, Qiong, Ge, Ruoheng, Zhao, Huijuan, Li, Daxiang, Wei, Shu, Han, Bin, Jiang, Changjun, Yin, Ye, Xia, Tao, Zhang, Zhengzhu, Zhao, Shancen, Bennetzen, Jeffrey L., Wei, Chaoling, and Wan, Xiaochun

Published
2019
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