Good afternoon and good Friday.
Today I spent some time checking some moulds that I have grown from random sources, including contaminants in previous isolations, air-borne spores, etc. More or less to self-educate. The one I am posting about should correspond to a Botrytis sp. Colonies are pale greyish with a hint of olive-brown hue or greenish in LED light. AT first, I thought I was examining B. cinerea, the common botrytis, but on consulting some books, the species is likely to be B. aclada or B. allii (the paper below recognizes both species as valid) and both are distributed worldwide and closely related to each other. The spore size may tell them apart.
Conidiospores were measured and have the following results:
(6.5) 7.2 - 9.5 (9.8) × (3.1) 4 - 4.9 (5.4) µm
Q = (1.5) 1.7 - 2.1 (2.5) ; N=39
V = (39) 64 - 110 (153) µm3
Me = 8.5 × 4.4 µm ; Qe = 1.9 ; Ve = 89 µm3
According to the article below the small conidiospores correspond to B. aclada!
Chilvers, MI, and du Toit, LJ 2006. Detection and identification of Botrytis species associated with neck rot, scape blight, and umbel blight of onion. On-line. Plant Health Progress doi:10.1094/PHP-2006-1127-01-DG.
Download paper (Chilvers, & du Toit, 2006)
I wonder if my analysis is correct and this species should correspond to B. alcada.
My thanks