Characterizing members of the Cladosporium cladosporioides species complex as fruit rot pathogens of red raspberries in the mid-Atlantic and co-occurrence with Drosophila suzukii (spotted wing drosophila)

Autor: Elizabeth M. Hellman, Cassandra L. Swett, Emmi E. Koivunen, Kelly A. Hamby, Tyler B. Bourret, Christa Carignan
Rok vydání: 2019
Předmět:
Zdroj: Phytoparasitica. 47:415-428
ISSN: 1876-7184
0334-2123
Popis: Fruit rot, primarily caused by Botrytis cinerea, is a major driver of pre- and post-harvest yield losses in fall red raspberries in the Mid-Atlantic. Recent observations indicate that Cladosporium fruit rot may also reduce yields. In a two-year survey of two Maryland farms, 1–30% of fall-bearing red raspberry fruit exhibited Cladosporium fruit rot (CFR) symptoms pre-harvest and symptoms developed post-harvest in 16% of fruit harvested when under-ripe and 51% of fruit harvested red ripe. Cladosporium cladosporioides and C. pseudocladosporioides were identified based on BLAST analysis of TEF-1α and actin gene regions, but determinations against voucher specimen sequences were not always congruent with phylogenetic analyses; sequences from many isolates matched C. anthropophilum voucher sequences still labeled as C. cladosporioides. Isolates of all three species caused fruit rot on non-wounded drupes (33–66%) and incidence increased when drupes were wounded (50–100%) (P 0.05). This first description of Cladosporium fruit rot of red raspberry in the Mid-Atlantic provides an expansive perspective on CFR pre- and post-harvest biology as well as pathogen diversity. Several lines of evidence point to linkages between CFR and D. suzukii epidemiology which require further exploration.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje