https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

Acta Horticulturae Sinica ›› 2026, Vol. 53 ›› Issue (7): 2004-2018.doi: 10.16420/j.issn.0513-353x.2025-1161

• Genetic & Breeding · Germplasm Resources · Molecular Biology • Previous Articles     Next Articles

Assessment of Gummosis Pathogens Resistance in Four Peach Rootstocks

ZHUO Siting1,2, LIANG Xin2, SHEN Xingyi2, HUANG Xue2, LIU Junwei2, ZHAO Shili3, HE Huaping1, LI Guohuai2, ZHU Wei1,*(), ZHU Kaijie2,*()   

  1. 1 Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Wuhan 430072, China
    2 National Key Lab for Germplasm Innovation and Utilization of Horticultural CropsCollege of Horticulture and Forestry Sciences,Huazhong Agricultural University, Wuhan 430070, China
    3 China Agriculture and Rural Affairs Bureau of Hefeng CountyEnshi, Hubei 445800, China
  • Received:2026-02-12 Revised:2026-05-20 Online:2026-07-25 Published:2026-07-23
  • Contact: ZHU Wei, ZHU Kaijie

Abstract:

Four peach rootstock resources(Taobadan,Tsukuba,Zhezhen 1,and Prunus persica)and two peach cultivars(Dahongpao and Spring Snow)with varying resistance to gummosis were used as experimental materials,disease resistance evaluation was conducted after inoculating with gummosis pathogens Lasiodiplodia theobromae JMB-122 and Botryosphaeria dothidea XNHG-241 using the detached shoot inoculation method. Antioxidant enzyme activities,hormone content and related genes expression were measured to assess the resistance of these peach germplasms to gummosis. The results showed that Taobadan exhibited the highest level of resistance,followed sequentially by Tsukuba,Zhezhen 1,Dahongpao,and Spring Snow. In contrast,P. persica identified was the most susceptible. Following inoculation with gummosis pathogens,Taobadan exhibited a significantly reduced lesion expansion rate and gummosis incidence compared to other germplasms. Additionally,there was a rapid increase in its antioxidant enzyme activities,alongside a swift elevation in the levels of salicylic acid and jasmonic acid. The expression of salicylic acid biosynthesis gene PpICS2 and jasmonic acid biosynthesis gene PpLOX2 were significantly up-regulated,and Taobadan is a promising resistant rootstock for peach gummosis.

Key words: peach, gummosis, germplasm, rootstock, Botryosphaeria dothidea, Lasiodiplodia theobromae