Diplodia sapinea

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Diplodia sapinea - A) annellate conidiogenous cells; B–E) conidia developing on conidiogenous cells; F–I) conidia, the ones in H have up to 2 septa; J, K) conidium in two different focal planes to show verruculose inner side of the wall. Scale bars = 10 μm. Scale bar in A applies to B. Scale bar in C applies to D–K.
Author(s): A.J.L. Phillips, A. Alves, J. Abdollahzadeh, B. Slippers, M.J. Wingfield, J.Z. Groenewald and P.W. Crous
Source: Studies in Mycology, 2013, 76, p.98

Diplodia sapinea (Fr.) (Fr.) Fuckel 1870

The fungus has a world-wide distribution wherever pines are grown. It is an endophyte of conifers, causing shoot blight and canker. It is also a wood-staining fungus and was introduced into South Africa, where it is the most important pathogen of conifers. The fungus spreads through seeds and wood or by the dispersal of conidia with rain splashes.

The species is often referred to as Diplodia pinea, which, however, has smaller conidia, 25–32 × 12–15 μm. The conidia of this species measure on average 33–39 × 12–13 μm.

Diplodia pinea
Sphaeropsis sapinea