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中国农学通报 ›› 2022, Vol. 38 ›› Issue (1): 44-52.doi: 10.11924/j.issn.1000-6850.casb2020-0745

所属专题: 生物技术 园艺

• 林学·园艺·园林 • 上一篇    下一篇

不同物候期晚熟桃‘秋彤’微生物群落结构分析

姜莉莉(), 郭腾达, 宫庆涛, 武海斌, 孙瑞红()   

  1. 山东省果树研究所,山东泰安 271000
  • 收稿日期:2020-12-04 修回日期:2021-11-08 出版日期:2022-01-05 发布日期:2022-02-24
  • 通讯作者: 孙瑞红
  • 作者简介:姜莉莉,女,1986年出生,山东烟台人,助理研究员,博士,研究方向为果树植保。通信地址:271000 山东省泰安市泰山区龙潭路66号 山东省果树研究所科研楼421室,Tel:0538-8266607,E-mail: gssjianglili@shandong.cn
  • 基金资助:
    山东省重大科技创新工程项目“桃园病虫草智能测报和精准防控技术研究与示范”(2018CXGC0213);山东省自然科学基金项目“草莓枯萎病拮抗菌JM-3修复草莓连作土壤的生态机理”(ZR2019PC013)

Microbial Community Structure Analysis on Different Phenophases of Late-maturing Peach ‘Snow Giant’

JIANG Lili(), GUO Tengda, GONG Qingtao, WU Haibin, SUN Ruihong()   

  1. Shandong Institute of Pomology, Tai’an, Shandong 271000
  • Received:2020-12-04 Revised:2021-11-08 Online:2022-01-05 Published:2022-02-24
  • Contact: SUN Ruihong

摘要:

为探明晚熟桃‘秋彤’年生长周期的微生物群落结构,采用高通量测序技术分析不同物候期,不同部位的细菌、真菌群落组成及丰度,以期为其科学管理提供理论依据。多样性指数分析发现,桃萌芽期和幼果期各部位的细菌Shannon和Simpson指数均低于硬核期、果实膨大期和成熟期各部位,表明后期的细菌多样性较高;花期和幼果期各部位的真菌Shannon和Simpson指数均高于硬核期,表明前期的真菌多样性较高。同一部位、不同物候期真菌丰度比较发现,果实膨大期叶片和萌芽期枝条枝孢菌(桃疮痂病病原菌)丰度较高,硬核期枝条和果实链格孢菌(桃黑斑病病原菌)等丰度较高。在现有管理模式下,晚熟桃‘秋彤’果实膨大期和萌芽期受桃疮痂病危害风险较高,硬核期受黑斑病危害风险较高。

关键词: 桃, ‘秋彤’, 高通量测序, 物候期, 丰度

Abstract:

To explore the microbial community structure during the whole annual growth cycle of late-maturing peach ‘Snow Giant’, high-throughput sequencing technology was used to analyze the composition and abundance of bacterial and fungal communities in different phenophases and parts, so as to provide a theoretical basis for the scientific management. The diversity index analysis showed that, the Shannon and Simpson indexes of the bacteria in the germination stage and the young fruit stage were lower than those in the hardcore stage, the fruit growth stage and the mature stage, indicating higher bacterial diversity in later stage. The Shannon and Simpson indexes of the fungi in the flower stage and the young fruit stage were higher than those in the hardcore stage, indicating higher fungi diversity in early stage. For fungal abundance comparison among different phenophases of the same part, the abundance of Cladosporium (scab pathogen) was higher in leaf at the fruit growth stage and branch at the germination stage. The abundance of Alternaria (black spot pathogen) was higher in branch and fruit at the hardcore stage. Under current management mode, the risk that ‘Snow Giant’ is infected by scab at the fruit growth stage and the germination stage is relatively high, and the risk of hardcore stage infected by black spot is relatively high.

Key words: peach, ‘Snow Giant’, high-throughput sequencing, phenophase, abundance

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