Single-cell transcriptomic analyses reveal cellular and molecular patterns of rose petal responses to gray mold infection
文献类型： 外文期刊
作者： Li, Xuejiao 1 ; Siman, Yinqi 1 ; Zhao, Yan 1 ; Peng, Lvchun 2 ; Wu, Hongzhi 1 ; Guan, Wenling 1 ; Zhang, Jingli 1 ; Cai, Yanfei 2 ; Yang, Zhengan 3 ; Li, Gengyun 1 ; Meng, Jing 1 ; He, Shuilian 1 ;
作者机构： 1.Yunnan Agr Univ, Coll Landscape & Hort, Kunming 650201, Yunnan, Peoples R China
2.Yunnan Acad Agr Sci, Inst Flowers, Kunming 650201, Yunnan, Peoples R China
3.Yunnan Agr Univ, Coll Landscape & Hort, Key Lab Vegetable Biol Yunnan Prov, Kunming 650201, Yunnan, Peoples R China
期刊名称：HORTICULTURE RESEARCH （ 影响因子：8.5； 五年影响因子：9.1 ）
ISSN： 2662-6810
年卷期： 2025 年 12 卷 9 期
页码：
收录情况： SCI
摘要： Roses (Rosa hybrida) are the most popular cut flower plants worldwide, accounting for over a third of the global cut flower industry. Gray mold, caused by Botrytis cinerea, is often referred to as the postharvest "cancer" of cut roses and represents the most significant disease impacting the postharvest preservation of these flowers in China. Currently, research progress in this area has been limited. Our study utilized single-cell RNA sequencing technology to elucidate the mechanisms underlying B. cinerea resistance in R. hybrida "Jumilia." We identified seven distinct cell groups within rose petals. The rose epidermis acts as the physical barrier of defense against B. cinerea, while the infection rate may be accelerated through vascular tissues. Furthermore, we identified several key genes, including pectin methylesterases, pathogenesis-related proteins, glutathione S-transferase, and endochitinase EP3, which may play crucial roles in the stress response. The biosynthesis of secondary metabolites temporarily mitigates the infection process, and pathogenesis-related proteins have been recognized as key regulatory genes. This preliminary study elucidates the cellular changes and molecular mechanisms involved in B. cinerea infection in rose petals at the single-cell level. Our findings provide new insights into the defense mechanisms of roses against fungal diseases.
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