1 Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521.
2 Department of Plant Pathology, University of California, Davis, Kearney Agricultural Research and Extension Center, Parlier, CA 93648.
Plant Dis. 2019 Jul;103(7):1464-1473. doi: 10.1094/PDIS-08-18-1425-RE. Epub 2019 Apr 17.
Corda, 1831 species are well-documented pathogens of citrus that are associated with leaf and fruit anthracnose diseases. However, their role in twig and shoot dieback diseases of citrus has recently become more prominent. Recent surveys of orchards in the Central Valley of California have revealed . and a previously undocumented species, , to be associated with twig and shoot dieback. Pathogenicity tests using clementine (cv. 4B) indicated that both and are capable of producing lesions following inoculation of citrus stems. Pathogenicity tests also revealed to be the most aggressive fungal species producing the longest lesions after 15 months. The majority of spores trapped during this study were trapped during or closely following a precipitation event with the majority of spores being trapped from January through May. These findings confirm as a new pathogen of citrus in California.
Corda，1831 年的物种是柑橘的病原体，与柑橘的叶和果实炭疽病有关。然而，它们在柑橘的嫩枝和梢枯病中的作用最近变得更加突出。最近对加利福尼亚州中央谷果园的调查显示， 和一种以前未被记录的物种 ，与嫩枝和梢枯病有关。使用克莱门氏小柑橘（cv. 4B）进行的致病性试验表明， 和 都能够在柑橘茎接种后产生病变。致病性试验还表明， 在 15 个月后产生的最长病变，是最具侵略性的真菌物种。在这项研究中捕获的大多数孢子是在降水事件期间或紧随其后捕获的，大多数孢子是在 1 月至 5 月捕获的。这些发现证实 是加利福尼亚州柑橘的一种新病原体。
