Ambrosiella is a genus of ambrosia fungi within the family Ceratocystidaceae. It was circumscribed by mycologists Josef Adolph von Arx and Grégoire L. Hennebert in 1965 with Ambrosiella xylebori designated as the type species.[1]
All Ambrosiella species are obligate symbionts of ambrosia beetles. Several former species were moved to genera Raffaelea, Hyalorhinocladiella, or Phialophoropsis,[2][3] and there were nine species recognized 2017.[3][4][5] Twelve species in as of 2023[update].[6]
One species, Ambrosiella cleistominuta, has been observed to produce a fertile sexual state with cleistothecious ascomata.[5]
^von Arx, J. A.; Hennebert, G. L. (1965). "Deux champignons ambrosia". Mycopathologia et Mycologia Applicata. 25 (3–4): 309–315. doi:10.1007/BF02049918. S2CID35541534.
^Lin, Yu-Ting; Shih, Hsin-Hui; Hulcr, Jiri; Lin, Ching-Shan; Lu, Sheng-Shan; Chen, Chi-Yu (April 2017). "Ambrosiella in Taiwan including one new species". Mycoscience. 58 (4): 242–252. doi:10.1016/j.myc.2017.02.004.
^ abMayers, Chase G.; Harrington, Thomas C.; Ranger, Christopher M. (May 2017). "First report of a sexual state in an ambrosia fungus: Ambrosiella cleistominuta sp. nov. associated with the ambrosia beetle Anisandrus maiche". Botany. 95 (5): 503–512. doi:10.1139/cjb-2016-0297. hdl:1807/77270.