Leptosphaerulina briosoana (Japanese Fungi on Plants)

Japanese Fungi on Plants No.39 before next top

Leptosphaerulina briosoana (Poll.) Graham & Luttrell
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae

Distributed northern form Kyushu, the southern Distr. Causes pepper spot and severe defoliation in alfalfa. Frequently isolated from other Medicago plants. Produces perithecia on diseased leaves and rotten stem and disperses by scattering ascospores. Anamorph unknown. The scientific name may be a synonym of L. trifolii (Rostr.) Petr.

Characteristics: Plant pathogenic Symptom: JPEG (Alfalfa, Pepper spot, 38kb)

			Morphology: Teleomorph: In light to yellow brown, subglobose perithecia, producing oval to ellipsoidal asci. Ascospores hyaline to light yellow, fusoid to ellipsoid, 26-46x11-18um in size with 1-2 vertical and 3 transverse septa. Anamorph: Unknown
Perithecia and asci	Asci and ascospores

Herbarium specimen in NIAES

Specimen No.	Scientific name	Host name	Host scientific name	Symptoms	Geographical origin	Collected date	Collector
110-1-131	Leptosphaerulina briosiana	alfalfa	Medicago sativa	Pepper spot	Chiba, Chiba	1961.7.3	Tsuchiya, Y.
110-1-140	"	"	"	"	Nishinasuno, Tochigi	1961.8.6	Tomonaga, T.
110-1-135	"	"	"	"	Kunneppu, Hokkaido	1969.9.1	"

(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)