College of Agricultural Science, Pennsylvania State University, University Park, PA 16802.
School of Science, Pennsylvania State University Erie, The Behrend College, Erie, PA 16563.
Phytopathology. 2023 Oct;113(10):1817-1821. doi: 10.1094/PHYTO-12-22-0451-SC. Epub 2023 Nov 2.
is internationally recognized as a destructive pathogen of chestnut species. Primarily associated with nut rot, it has also been associated with branch and stem cankers of chestnut and as an endophyte of multiple additional hardwood species. The present study evaluated implications of the recently reported United States presence of the pathogen for domestic species. Stem inoculation assays of , , × , and (red oak) seedlings were utilized to examine the cankering ability of a regional isolate of the pathogen. The pathogen induced damaging cankers in all assessed species and significant stem girdling in all chestnut species. No previous study has associated the pathogen with damaging infection in species, and its presence in the United States has the potential to compound ongoing chestnut recovery programs and oak regeneration problems within forest systems.
被国际公认为栗属物种的破坏性病原体。它主要与坚果腐烂有关，但也与栗树的枝干溃疡有关，并且是多种其他硬木物种的内生菌。本研究评估了最近报道的该病原体在美国国内物种中存在的意义。利用 、 、 × 和 （红橡木）幼苗的茎接种试验来检验该病原体的区域分离株的溃疡形成能力。该病原体在所有受评估的物种中引起了破坏性溃疡，并在所有栗树物种中造成了严重的茎环缢。以前的研究没有将该病原体与 物种的破坏性感染联系起来，而它在美国的存在有可能使正在进行的栗树恢复计划和森林系统中的橡树再生问题更加复杂。
