Metarhizium guizhouense Q.T. Chen & H.L. Guo, Q. T. Chen & H. L. Guo, Acta Mycol. Sin.

Wijayawardene, Nalin N., Dissanayake, Lakmali S., Li, Qi-Rui, Dai, Dong-Qi, Xiao, Yuanpin, Wen, Ting-Chi, Karunarathna, Samantha C., Wu, Hai-Xia, Zhang, Huang, Tibpromma, Saowaluck, Kang, Ji-Chuan, Wang, Yong, Shen, Xiang- Chun, Tang, Li-Zhou, Deng, Chun-Ying, Liu, Yanxia & Kang, Yingqian, 2021, Yunnan-Guizhou Plateau: a mycological hotspot, Phytotaxa 523 (1), pp. 1-31: 14

publication ID 10.11646/phytotaxa.523.1.1


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Metarhizium guizhouense Q.T. Chen & H.L. Guo


Metarhizium guizhouense Q.T. Chen & H.L. Guo   ,

Acta Mycol. Sin. 5(3): 181 (1986)


Index Fungorum Number: 130206

Specimen found on stick insects ( Phasmatodea  ). Host’s internodes between abdominal segments were covered with white to pale green mycelium and sporulating conidiophores. Conidiophores arising from hyphae, smooth-walled. Phialides cylindrical, solitary, smooth-walled, 8–18 × 1–1.5 μm. Conidia smooth-walled, pale green to colorless (6.5– 9.5 × 2.5–3 μm), cylindrical, slightly constricted in the middle, round at both ends or tapered at one end. Bi-celled conidium was not observed.

Culture characteristics:— Colonies on PDA were relatively slow-growing, fluffy, beginning to white, and the spores appear green, started to produce conidia after 3 days in culture at 25 °C in the laboratory, 17 mm diam. after 10 days. Mature conidia chains are often spread on the surface of the colony in small granular clumps. Hyphae hyaline, separated, branched, about 3 um wide.

Material examined:— China, Guizhou Province, Guiyang , on dead stick insects, July 2019, Q.R. L, 2019GY03 ( GMB0010), living cultures, GMBC0010 (new host record)   .

Known hosts and distribution:— Guizhou

Known hosts:— larvae of Noctuidae   sp., stick insects

GenBank Numbers:— ITS: MW881444 View Materials   , LSU: MW 881450 View Materials   , RPB2: MW 883344 View Materials  

Note:— Metarhizium guizhouense   , isolated on Hepialus   sp. in Guizhou China, was introduced by Guo et al. (1986). In 1991, Liang et al. reported a M. taii Z.Q. Liang & A.Y. Liu   on larvae of Noctuidae   sp. ( Lepidoptera   ). Metacordyceps taii   was recognized to be the sexual morph of M. guizhouense   by Bischoff et al. (2009). Qu et al. also reported that M. taii   should be treated as a synonym of M. guizhouense   based on molecular data. This is the first report of M. guizhouense   isolated on stick insects ( Phasmatodea  ).


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