Species
Before molecular techniques were introduced at the end of the 20th century, Metarhizium species were identified on morphological (notably conidial) characteristics. The 'original' species included: M. anisopliae (with M.a. var. major ), M. brunneum , M. cicadinum , M. cylindrosporum , M. flavoviride , M. taii , M. truncatum , and M. viridicolumnare . In 2009, nine former varieties of the type species M. anisopliae were assigned species status. [2] New species have continued to be identified, with original names sometimes re-instated (notably M. brunneum ). The first complete chromosome length genome sequence for any Metarhizium was carried out for this species at Swansea University in 2021. [3]
The Index Fungorum currently (April 2024) lists: [4]
- Metarhizium acridum (Driver & Milner) J.F. Bisch., S.A. Rehner & Humber (2009)
- Metarhizium alvesii R.B. Lopes, M. Faria, C. Montalva & R.A. Humber (2018)
- Metarhizium anisopliae (Metschn.) Sorokīn (1883)
- Metarhizium argentinense A.C. Gutierrez, A. Leclerque & C.C. Lopez Lastra (2019)
- Metarhizium atrovirens (Kobayasi & Shimizu) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium baoshanense Z.H. Chen, Ling Xu, X.N. Yang, Y.G. Zhang & Y.M. Yang (2018)
- Metarhizium bibionidarum Nishi & Hiroki Sato (2017)
- Metarhizium biotecense Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium blattodeae C. Montalva, Humber, K. Collier & C. Luz (2016)
- Metarhizium brachyspermum Koh. Yamam., Ohmae & Orihara (2019)
- Metarhizium brasiliense Kepler, S.A. Rehner & Humber (2014)
- Metarhizium brittlebankisoides (Zuo Y. Liu, Z.Q. Liang, Whalley, Y.J. Yao & A.Y. Liu) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium brunneum Petch (1935)
- Metarhizium campsosterni (W.M. Zhang & T.H. Li) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium candelabrum Luangsa-ard, Mongkols., Thanakitp. & Samson (2020)
- Metarhizium cercopidarum Luangsa-ard, Mongkols., Thanakitp. & Samson (2020)
- Metarhizium chaiyaphumense Tasan., Khons., Thanak., Mongkols. & Luangsa-ard (2017)
- Metarhizium cicadae Luangsa-ard, Tasan., Thanakitp. & Samson (2020)
- Metarhizium cicadinum (Höhn.) Petch (1931)
- Metarhizium clavatum Luangsa-ard, Mongkols., Lamlertthon, Thanakitp. & Samson (2020)
- Metarhizium culicidarum Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium cylindrosporum Q.T. Chen & H.L. Guo (1986)
- Metarhizium dendrolimi Z.Q. Liang, Wan H. Chen, Y.F. Han & X. Zou (2017)
- Metarhizium eburneum Luangsa-ard, Noisrip., Thanakitp. & Samson (2020)
- Metarhizium ellipsoideum Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium flavoviride W. Gams & Rozsypal (1973)
- Metarhizium flavum Luangsa-ard, Mongkols., Thanakitp. & Samson (2020)
- Metarhizium frigidum J.F. Bisch. & S.A. Rehner (2007)
- Metarhizium fusoideum Luangsa-ard, Mongkols., Thanakitp. & Samson (2020)
- Metarhizium gaoligongense Z.H. Chen & L. Xu (2018)
- Metarhizium globosum J.F. Bisch., S.A. Rehner & Humber (2009)
- Metarhizium granulomatis (Sigler) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium gryllidicola Khons., Thanakitp. & Luangsa-ard (2020)
- Metarhizium guniujiangense (C.R. Li, B. Huang, M.Z. Fan & Z.Z. Li) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium huainamdangense Luangsa-ard, Mongkols., Thanakitp. & Samson (2020)
- Metarhizium humberi C. Luz, L. Rocha & I. Delalibera, (2019)
- Metarhizium indigoticum (Kobayasi & Shimizu) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium kalasinense Tasan., Khons., Thanak., Mongkols. & Luangsa-ard (2017)
- Metarhizium koreanum Kepler, S.A. Rehner & Humber (2014)
- Metarhizium lepidiotae (Driver & Milner) J.F. Bisch., S.A. Rehner & Humber (2009)
- Metarhizium lepidopterorum W.H. Chen, Y.F. Han, J.D. Liang & Z.Q. Liang (2019)
- Metarhizium macrosemiae M.J. Chen & B. Huang (2022)
- Metarhizium majus (J.R. Johnst.) J.F. Bisch., S.A. Rehner & Humber (2009)
- Metarhizium megapomponiae Luangsa-ard, Tasan., Thanakitp. & Samson (2020)
- Metarhizium minus (Rombach, Humber & D.W. Roberts) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium niveum Luangsa-ard, Tasan., Thanakitp. & Samson (2020)
- Metarhizium nornnoi Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium novozealandicum (Driver & Milner) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium ovoidosporum Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium owariense (Kobayasi) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium pemphigi (Driver & Milner) Kepler, Humber & S.A. Rehner (2014)
- Metarhizium phasmatodeae Khons., Thanakitp. & Luangsa-ard (2020)
- Metarhizium phuwiangense Luangsa-ard, Mongkols., Himaman, Thanakitp. & Samson (2020)
- Metarhizium prachinense Tasan., Khons., Thanak., Mongkols. & Luangsa-ard (2017)
- Metarhizium pseudoatrovirens (Kobayasi & Shimizu) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium purpureogenum Nishi, S. Shimizu & Hiroki Sato (2017)
- Metarhizium purpureonigrum Luangsa-ard, Tasan., Thanakitp. & Samson (2020)
- Metarhizium purpureum Luangsa-ard, Mongkols., Lamlertthon, Thanakitp. & Samson (2020)
- Metarhizium putuoense Yi Li, X.C. Zhao, Yu Wang & W.F. Lin (2023)
- Metarhizium reniforme (Samson & H.C. Evans) Luangsa-ard, Boucias & Hywel-Jones (2017)
- Metarhizium rileyi (Farl.) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium robertsii J.F. Bisch., S.A. Rehner & Humber (2009)
- Metarhizium rongjiangense W.H. Chen, Y.F. Han, J.D. Liang & Z.Q. Liang (2019)
- Metarhizium samlanense Luangsa-ard, Thanak., Tasan., Mongkols. & Hywel-Jones (2017)
- Metarhizium sulphureum Luangsa-ard, Khons., Thanakitp. & Samson (2020)
- Metarhizium synnematis Z.Q. Liang, H.L. Chu & T.C. Wen (2016)
- Metarhizium taii Z.Q. Liang & A.Y. Liu (1991)
- Metarhizium takense Tasan., Thanak., Mongkols. & Luangsa-ard (2017)
- Metarhizium truncatum Petch (1931)
- Metarhizium viride (Segretain, Fromentin, Destombes, Brygoo & Dodin ex Samson) Kepler, S.A. Rehner & Humber (2014)
- Metarhizium viridicolumnare (Matsush.) Matsush. (1993)
- Metarhizium viridulum (Tzean, L.S. Hsieh, J.L. Chen & W.J. Wu) B. Huang & Z.Z. Li (2004)
- Metarhizium puerense Hong Yu bis, J. M. Ma & Z.Q. Wang 2024
Other reclassified species names
- M. glutinosum is now placed in the Stachybotryaceae as Albifimbria (Myrothecium) verrucaria(Alb. & Schwein.) L. Lombard & Crous [5]
- species now placed in other genera in the Clavicipitaceae include: [4]
- M. albumPetch, 1931 and other names now assigned to M. anisopliae (see synonyms)
- M. aciculareH. Iwasaki, Tokiwa & Nonaka (2019) is now Keithomyces acicularis
- M. carneum(Duché & R. Heim) Kepler, S.A. Rehner & Humber (2014) is now Keithomyces carneus
- M. khaoyaiense(Hywel-Jones) Kepler, S.A. Rehner & Humber (2014) is now Purpureomyces khaoyaiensis
- M. kusanagiense(Kobayasi & Shimizu) Kepler, S.A. Rehner & Humber (2014) is now Yosiokobayasia kusanagiensis
- M. marquandii(Massee) Kepler, S.A. Rehner & Humber (2014) is now Marquandomyces marquandii
- M. martiale(Speg.) Kepler, S.A. Rehner & Humber (2014) is now Nigelia martialis(Speg.) Luangsa-ard & Thanakitp. [6]
- M. yongmunense(G.H. Sung, J.M. Sung & Spatafora) Kepler, S.A. Rehner & Humber (2014) is now Sungia yongmunensis
Teleomorphs
The teleomorphs of Metarhizium species appear to be members of the genus Metacordyceps . [7] Metacordyceps taii (as Cordyceps taii) has been described as the teleomorph of Metarhizium taii: [8] [9] a name that has now been restored.
Whether the other varieties of M. anisopliae have their own teleomorphs is not yet clear. Some, if not most, strains of M. anisopliae possibly have lost the capability of reproducing sexually.
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