Metarhizium flavoviride: Difference between revisions

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{{Speciesbox
{{Speciesbox
| image = Jassid M flavoviride.jpg
| image = Jassid M flavoviride.jpg
| image_caption = Unidentified leafhopper ([[Cicadellidae]]) infected with ''M. flavoviride'': [[Atewa Range|Atewa forest]], [[Ghana]] (2008)
| image_caption = Unidentified leafhopper ([[Cicadellidae]]) probably infected with ''M. flavoviride'': [[Atewa Range|Atewa forest]], [[Ghana]] (2008)
| genus = Metarhizium
| genus = Metarhizium
| species = flavoviride
| species = flavoviride
| authority = Gams & Roszypal, 1973
| authority = Gams & Roszypal, 1973
| synonyms = ''Metarhizium iadini'' {{Au|H.L. Guo (1991)}}
| synonyms_ref = <ref name = IndF>[http://www.speciesfungorum.org/Names/Names.asp ''Species fungorum'' search ''Metarhizium'' (retrieved 27 April 2024)]</ref>
}}
}}


'''''Metarhizium flavoviride''''' is a [[Sordariomycetes|Sordariomycete]] in the order [[Hypocreales]] and family [[Clavicipitaceae]].<ref name=":0">{{Citation |last=Humber |first=Richard A. |title=Fungi |date=1997 |url=http://dx.doi.org/10.1016/b978-012432555-5/50011-7 |work=Manual of Techniques in Insect Pathology |pages=153–185 |access-date=2023-05-03 |publisher=Elsevier|doi=10.1016/b978-012432555-5/50011-7 |isbn=9780124325555 }}</ref> The genus ''[[Metarhizium]]'' currently consists of 45 described species and are a group of fungal [[genetic isolate|isolates]] that are known to be virulent against [[Hemiptera]] and some [[Coleoptera]]. ''M. flavoviride'' is described as its own species, but there also exists a variety of ''M. flavoviride'', which is ''M. flavoviride'' var. ''flavoviride''.<ref name=":1">{{Cite journal |last1=Tóthné Bogdányi |last2=Petrikovszki |last3=Balog |last4=Putnoky-Csicsó |last5=Gódor |last6=Bálint |last7=Tóth |date=2019-11-02 |title=Current Knowledge of the Entomopathogenic Fungal Species Metarhizium flavoviride Sensu Lato and Its Potential in Sustainable Pest Control |journal=Insects |volume=10 |issue=11 |pages=385 |doi=10.3390/insects10110385 |pmid=31684065 |issn=2075-4450|pmc=6920967 |doi-access=free }}</ref><ref name=":2">{{Cite journal |last1=Driver |first1=Felice |last2=Milner |first2=Richard J. |last3=Trueman |first3=John W.H. |date=February 2000 |title=A taxonomic revision of Metarhizium based on a phylogenetic analysis of rDNA sequence data |url=http://dx.doi.org/10.1017/s0953756299001756 |journal=Mycological Research |volume=104 |issue=2 |pages=134–150 |doi=10.1017/s0953756299001756 |issn=0953-7562}}</ref> Previously described varieties of ''M. flavoviride'' have been documented, however recent [[Random amplification of polymorphic DNA|random amplified polymorphic DNA]] (RAPD) markers have assigned these varieties as new species.<ref name=":1" /> The reassigned species are as follows: ''M. flavoviride'' Type E is now ''M. brasiliense''; ''M. flavoviride'' var. ''minus'' is now ''M. minus''; ''M. flavoviride'' var. ''novozealandicum'' is now ''M. novozealandicum''; and ''M. flavoviride'' var. ''pemphigi'' is now ''M. pemphigi''.<ref name=":1" /><ref name=":2" />
'''''Metarhizium flavoviride''''' is a [[Sordariomycetes|Sordariomycete]] in the order [[Hypocreales]] and family [[Clavicipitaceae]].<ref name=":0">{{Citation |last=Humber |first=Richard A. |title=Fungi |date=1997 |url=http://dx.doi.org/10.1016/b978-012432555-5/50011-7 |work=Manual of Techniques in Insect Pathology |pages=153–185 |access-date=2023-05-03 |publisher=Elsevier|doi=10.1016/b978-012432555-5/50011-7 |isbn=9780124325555 }}</ref> The genus ''[[Metarhizium]]'' currently consists of over 70 described species and are a group of fungal [[genetic isolate|isolates]] that are known to be virulent against [[Hemiptera]] and some [[Coleoptera]]. ''M. flavoviride'' is described as its own species, but there also exists a variety of ''M. flavoviride'', which is ''M. flavoviride'' var. ''flavoviride''.<ref name=":1">{{Cite journal |last1=Tóthné Bogdányi |last2=Petrikovszki |last3=Balog |last4=Putnoky-Csicsó |last5=Gódor |last6=Bálint |last7=Tóth |date=2019-11-02 |title=Current Knowledge of the Entomopathogenic Fungal Species Metarhizium flavoviride Sensu Lato and Its Potential in Sustainable Pest Control |journal=Insects |volume=10 |issue=11 |pages=385 |doi=10.3390/insects10110385 |pmid=31684065 |issn=2075-4450|pmc=6920967 |doi-access=free }}</ref><ref name=":2">{{Cite journal |last1=Driver |first1=Felice |last2=Milner |first2=Richard J. |last3=Trueman |first3=John W.H. |date=February 2000 |title=A taxonomic revision of Metarhizium based on a phylogenetic analysis of rDNA sequence data |url=http://dx.doi.org/10.1017/s0953756299001756 |journal=Mycological Research |volume=104 |issue=2 |pages=134–150 |doi=10.1017/s0953756299001756 |issn=0953-7562}}</ref> Previously described varieties of ''M. flavoviride'' have been documented, however recent [[Random amplification of polymorphic DNA|random amplified polymorphic DNA]] (RAPD) markers have assigned these varieties as new species.<ref name=":1" /> The reassigned species are as follows: ''M. flavoviride'' Type E is now ''M. brasiliense''; ''M. flavoviride'' var. ''minus'' is now ''M. minus''; ''M. flavoviride'' var. ''novozealandicum'' is now ''M. novozealandicum''; and ''M. flavoviride'' var. ''pemphigi'' is now ''M. pemphigi''.<ref name=":1" /><ref name=":2" />


All species in the ''Metarhizium'' genus are [[Entomopathogenic fungus|entomopathogenic]], infecting a variety of hosts ranging from those in the orders [[Beetle|Coleoptera]], [[Hemiptera]], [[Fly|Diptera]], and [[Orthoptera]]. Hosts are often agriculturally important pests.<ref name=":1" /><ref name=":3">{{Cite journal |last1=Curran |first1=J. |last2=Driver |first2=F. |last3=Ballard |first3=J.W.O. |last4=Milner |first4=R.J. |date=May 1994 |title=Phylogeny of Metarhizium: analysis of ribosomal DNA sequence data |url=http://dx.doi.org/10.1016/s0953-7562(09)80478-4 |journal=Mycological Research |volume=98 |issue=5 |pages=547–552 |doi=10.1016/s0953-7562(09)80478-4 |issn=0953-7562}}</ref><ref name=":4">{{Cite journal |last1=Gołębiowski |first1=Marek |last2=Bojke |first2=Aleksandra |last3=Tkaczuk |first3=Cezary |date=2021-03-30 |title=Effects of the entomopathogenic fungi ''Metarhizium robertsii, Metarhizium flavoviride'', and ''Isaria fumosorosea'' on the lipid composition of ''Galleria mellonella'' larvae |url=http://dx.doi.org/10.1080/00275514.2021.1877520 |journal=Mycologia |volume=113 |issue=3 |pages=525–535 |doi=10.1080/00275514.2021.1877520 |pmid=33783340 |s2cid=232419429 |issn=0027-5514}}</ref><ref>{{Cite journal |last1=Liu |first1=Si‐Yu |last2=Lai |first2=You‐Peng |last3=Du |first3=Guang‐Zu |last4=Chen |first4=Bin |date=November 2022 |title=Investigation on tolerance of ''Metarhizium flavoviride'' Ma130821 to environmental stress factors and responses on biological control of larvae of ''Potosia brevitarsis'' Lewis |url=http://dx.doi.org/10.1111/1748-5967.12620 |journal=Entomological Research |volume=52 |issue=11 |pages=459–475 |doi=10.1111/1748-5967.12620 |s2cid=253796354 |issn=1738-2297}}</ref> Historically, species in the ''Metarhizium'' genus have been distinguished from each other by morphological traits such as differences in conidial shape, color, and conidiogenous cells. These taxonomic morphological differences are mostly substantiated by [[Alloenzyme|allozyme]] analyses.<ref>{{Cite journal |last1=Bridge |first1=P. D. |last2=Williams |first2=M. A. J. |last3=Prior |first3=C. |last4=Paterson |first4=R. R. M. |date=1993-06-01 |title=Morphological, biochemical and molecular characteristics of Metarhizium anisopliae and M. flavoviride |journal=Journal of General Microbiology |volume=139 |issue=6 |pages=1163–1169 |doi=10.1099/00221287-139-6-1163 |issn=0022-1287|doi-access=free }}</ref><ref>{{Cite journal |last1=St. Leger |first1=R.J. |last2=May |first2=B. |last3=Allee |first3=L.L. |last4=Frank |first4=D.C. |last5=Staples |first5=R.C. |last6=Roberts |first6=D.W. |date=July 1992 |title=Genetic differences in allozymes and in formation of infection structures among isolates of the entomopathogenic fungus Metarhizium anisopliae |journal=Journal of Invertebrate Pathology |volume=60 |issue=1 |pages=89–101 |doi=10.1016/0022-2011(92)90159-2 |issn=0022-2011|doi-access=free }}</ref><ref name=":5">{{Cite journal |last1=Nishi |first1=Oumi |last2=Hasegawa |first2=Keiichi |last3=Iiyama |first3=Kazuhiro |last4=Yasunaga-Aoki |first4=Chisa |last5=Shimizu |first5=Susumu |date=2011-05-07 |title=Phylogenetic analysis of Metarhizium spp. isolated from soil in Japan |url=http://dx.doi.org/10.1007/s13355-011-0045-y |journal=Applied Entomology and Zoology |volume=46 |issue=3 |pages=301–309 |doi=10.1007/s13355-011-0045-y |s2cid=24382475 |issn=0003-6862}}</ref> However, recent studies indicate that using morphological characteristics is not an accurate method to distinguish between different ''Metarhizium'' species and their respective varieties, and instead, molecular and genetic techniques should be used.<ref name=":1" /><ref name=":2" /><ref name=":5" />
All species in the ''Metarhizium'' genus are [[Entomopathogenic fungus|entomopathogenic]], infecting a variety of hosts ranging from those in the orders [[Beetle|Coleoptera]], [[Hemiptera]], [[Fly|Diptera]], and [[Orthoptera]]. Hosts are often agriculturally important pests.<ref name=":1" /><ref name=":3">{{Cite journal |last1=Curran |first1=J. |last2=Driver |first2=F. |last3=Ballard |first3=J.W.O. |last4=Milner |first4=R.J. |date=May 1994 |title=Phylogeny of Metarhizium: analysis of ribosomal DNA sequence data |url=http://dx.doi.org/10.1016/s0953-7562(09)80478-4 |journal=Mycological Research |volume=98 |issue=5 |pages=547–552 |doi=10.1016/s0953-7562(09)80478-4 |issn=0953-7562}}</ref><ref name=":4">{{Cite journal |last1=Gołębiowski |first1=Marek |last2=Bojke |first2=Aleksandra |last3=Tkaczuk |first3=Cezary |date=2021-03-30 |title=Effects of the entomopathogenic fungi ''Metarhizium robertsii, Metarhizium flavoviride'', and ''Isaria fumosorosea'' on the lipid composition of ''Galleria mellonella'' larvae |url=http://dx.doi.org/10.1080/00275514.2021.1877520 |journal=Mycologia |volume=113 |issue=3 |pages=525–535 |doi=10.1080/00275514.2021.1877520 |pmid=33783340 |s2cid=232419429 |issn=0027-5514}}</ref><ref>{{Cite journal |last1=Liu |first1=Si‐Yu |last2=Lai |first2=You‐Peng |last3=Du |first3=Guang‐Zu |last4=Chen |first4=Bin |date=November 2022 |title=Investigation on tolerance of ''Metarhizium flavoviride'' Ma130821 to environmental stress factors and responses on biological control of larvae of ''Potosia brevitarsis'' Lewis |url=http://dx.doi.org/10.1111/1748-5967.12620 |journal=Entomological Research |volume=52 |issue=11 |pages=459–475 |doi=10.1111/1748-5967.12620 |s2cid=253796354 |issn=1738-2297}}</ref>


''M. flavoviride'' is mainly studied for its use as a [[Biological pest control|biological control]] to reduce [[pesticide resistance]] in plants where hosts feed on, as well as to reduce the environmental impact of using pesticides on agricultural crops.<ref>{{Cite journal |last1=Meyling |first1=Nicolai V. |last2=Thorup-Kristensen |first2=Kristian |last3=Eilenberg |first3=Jørgen |date=November 2011 |title=Below- and aboveground abundance and distribution of fungal entomopathogens in experimental conventional and organic cropping systems |url=http://dx.doi.org/10.1016/j.biocontrol.2011.07.017 |journal=Biological Control |volume=59 |issue=2 |pages=180–186 |doi=10.1016/j.biocontrol.2011.07.017 |issn=1049-9644}}</ref><ref name=":6">{{Cite journal |last1=Vivekanandhan |first1=Perumal |last2=Swathy |first2=Kannan |last3=Alford |first3=Lucy |last4=Pittarate |first4=Sarayut |last5=Subala |first5=Subramanian Panchu Ravindra Rajan |last6=Mekchay |first6=Supamit |last7=Elangovan |first7=Dilipan |last8=Krutmuang |first8=Patcharin |date=2022-10-06 |title=Toxicity of Metarhizium flavoviride conidia virulence against Spodoptera litura (Lepidoptera: Noctuidae) and its impact on physiological and biochemical activities |url=http://dx.doi.org/10.1038/s41598-022-20426-x |journal=Scientific Reports |volume=12 |issue=1 |page=16775 |doi=10.1038/s41598-022-20426-x |pmid=36202839 |pmc=9537412 |issn=2045-2322|hdl=1983/e7340678-0a3e-4b76-b245-0327c7bdd06d |hdl-access=free }}</ref>
''M. flavoviride'' is mainly studied for its potential as a [[Biological pest control|biological control]] agent to mitigate effects such as [[pesticide resistance]] in plants where hosts feed on, as well as to reduce the environmental impact of using pesticides on agricultural crops.<ref>{{Cite journal |last1=Meyling |first1=Nicolai V. |last2=Thorup-Kristensen |first2=Kristian |last3=Eilenberg |first3=Jørgen |date=November 2011 |title=Below- and aboveground abundance and distribution of fungal entomopathogens in experimental conventional and organic cropping systems |url=http://dx.doi.org/10.1016/j.biocontrol.2011.07.017 |journal=Biological Control |volume=59 |issue=2 |pages=180–186 |doi=10.1016/j.biocontrol.2011.07.017 |issn=1049-9644}}</ref><ref name=":6">{{Cite journal |last1=Vivekanandhan |first1=Perumal |last2=Swathy |first2=Kannan |last3=Alford |first3=Lucy |last4=Pittarate |first4=Sarayut |last5=Subala |first5=Subramanian Panchu Ravindra Rajan |last6=Mekchay |first6=Supamit |last7=Elangovan |first7=Dilipan |last8=Krutmuang |first8=Patcharin |date=2022-10-06 |title=Toxicity of Metarhizium flavoviride conidia virulence against Spodoptera litura (Lepidoptera: Noctuidae) and its impact on physiological and biochemical activities |url=http://dx.doi.org/10.1038/s41598-022-20426-x |journal=Scientific Reports |volume=12 |issue=1 |page=16775 |doi=10.1038/s41598-022-20426-x |pmid=36202839 |pmc=9537412 |issn=2045-2322|hdl=1983/e7340678-0a3e-4b76-b245-0327c7bdd06d |hdl-access=free }}</ref>


As with other ''[[Metarhizium]]'' species, there has been interest in developing isolates into [[biological pesticide|mycoinsecticides]]: with work carried out on [[rice]] insect pests during the 1970–80s.<ref>Shepard BM, Barrion AT, Litsinger JA. 1987. Helpful insects, spiders, and pathogens. Manila (Philippines): International Rice Research Institute. 127 pp.</ref> However, such isolates appear to be more difficult to mass-produce, so there has been less commercial activity than with other ''Metarhizium'' species. In light of new molecular techniques, we now know that references to this [[species]] for control of [[locust]]s (''e.g.'' in early [[LUBILOSA]] Programme literature) should apply to ''[[Metarhizium acridum]]''.
As with other ''[[Metarhizium]]'' species, there has been interest in developing isolates into [[biological pesticide|mycoinsecticides]]: with work carried out on [[rice]] insect pests during the 1970–80s.<ref>Shepard BM, Barrion AT, Litsinger JA. 1987. Helpful insects, spiders, and pathogens. Manila (Philippines): International Rice Research Institute. 127 pp.</ref> However, such isolates appear to be more difficult to mass-produce, so there has been less commercial activity than with other ''Metarhizium'' species. In light of new molecular techniques, we now know that references to this [[species]] for control of [[locust]]s (''e.g.'' in early [[LUBILOSA]] Programme literature) should apply to ''[[Metarhizium acridum]]''.


== Description ==
== Description ==
''M. flavoviride'' conidia ([[spore]]s) range in color from vibrant green to light grey-green.<ref name=":0" /><ref name=":3" /><ref name=":7">{{Cite journal |last1=Masoudi |first1=Abolfazl |last2=Koprowski |first2=John lad |last3=Bhattarai |first3=Upendra Raj |last4=Wang |first4=Dun |date=2017-11-30 |title=Elevational distribution and morphological attributes of the entomopathogenic fungi from forests of the Qinling Mountains in China |url=http://dx.doi.org/10.1007/s00253-017-8651-4 |journal=Applied Microbiology and Biotechnology |volume=102 |issue=3 |pages=1483–1499 |doi=10.1007/s00253-017-8651-4 |pmid=29189901 |s2cid=253769818 |issn=0175-7598}}</ref> Conidiogenous cells are 7–11&nbsp;μm long and clavate, broadly ellipsoid, or ovoid. Conidia are relatively slow to develop.<ref name=":3" /><ref name=":0" />
Historically, less than 10 species in the ''Metarhizium'' genus were distinguished from each other by morphological traits such as differences in conidial shape, colour, and conidiogenous cells. ''M. flavoviride'' was one of these, with conidia ([[spore]]s) ranging in colour from vibrant green to light grey-green.<ref name=":0" /><ref name=":3" /><ref name=":7">{{Cite journal |last1=Masoudi |first1=Abolfazl |last2=Koprowski |first2=John lad |last3=Bhattarai |first3=Upendra Raj |last4=Wang |first4=Dun |date=2017-11-30 |title=Elevational distribution and morphological attributes of the entomopathogenic fungi from forests of the Qinling Mountains in China |url=http://dx.doi.org/10.1007/s00253-017-8651-4 |journal=Applied Microbiology and Biotechnology |volume=102 |issue=3 |pages=1483–1499 |doi=10.1007/s00253-017-8651-4 |pmid=29189901 |s2cid=253769818 |issn=0175-7598}}</ref> Conidiogenous cells are 7–11&nbsp;μm long and clavate, broadly ellipsoid, or ovoid. Conidia are relatively slow to develop.<ref name=":3" /><ref name=":0" /> These taxonomic morphological differences were later substantiated by [[Alloenzyme|allozyme]] analyses.<ref>{{Cite journal |last1=Bridge |first1=P. D. |last2=Williams |first2=M. A. J. |last3=Prior |first3=C. |last4=Paterson |first4=R. R. M. |date=1993-06-01 |title=Morphological, biochemical and molecular characteristics of Metarhizium anisopliae and M. flavoviride |journal=Journal of General Microbiology |volume=139 |issue=6 |pages=1163–1169 |doi=10.1099/00221287-139-6-1163 |issn=0022-1287|doi-access=free }}</ref><ref>{{Cite journal |last1=St. Leger |first1=R.J. |last2=May |first2=B. |last3=Allee |first3=L.L. |last4=Frank |first4=D.C. |last5=Staples |first5=R.C. |last6=Roberts |first6=D.W. |date=July 1992 |title=Genetic differences in allozymes and in formation of infection structures among isolates of the entomopathogenic fungus Metarhizium anisopliae |journal=Journal of Invertebrate Pathology |volume=60 |issue=1 |pages=89–101 |doi=10.1016/0022-2011(92)90159-2 |issn=0022-2011|doi-access=free }}</ref><ref name=":5">{{Cite journal |last1=Nishi |first1=Oumi |last2=Hasegawa |first2=Keiichi |last3=Iiyama |first3=Kazuhiro |last4=Yasunaga-Aoki |first4=Chisa |last5=Shimizu |first5=Susumu |date=2011-05-07 |title=Phylogenetic analysis of Metarhizium spp. isolated from soil in Japan |url=http://dx.doi.org/10.1007/s13355-011-0045-y |journal=Applied Entomology and Zoology |volume=46 |issue=3 |pages=301–309 |doi=10.1007/s13355-011-0045-y |s2cid=24382475 |issn=0003-6862}}</ref> However, recent studies indicate that using morphological characteristics is not an accurate method to distinguish between different ''Metarhizium'' species and their respective varieties, and instead, molecular and genetic techniques should be used.<ref name=":1" /><ref name=":2" /><ref name=":5" />


== Distribution and habitat ==
== Distribution and habitat ==

Latest revision as of 03:57, 28 April 2024

Metarhizium flavoviride
Unidentified leafhopper (Cicadellidae) probably infected with M. flavoviride: Atewa forest, Ghana (2008)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Order: Hypocreales
Family: Clavicipitaceae
Genus: Metarhizium
Species:
M. flavoviride
Binomial name
Metarhizium flavoviride
Gams & Roszypal, 1973
Synonyms[1]

Metarhizium iadini H.L. Guo (1991)

Metarhizium flavoviride is a Sordariomycete in the order Hypocreales and family Clavicipitaceae.[2] The genus Metarhizium currently consists of over 70 described species and are a group of fungal isolates that are known to be virulent against Hemiptera and some Coleoptera. M. flavoviride is described as its own species, but there also exists a variety of M. flavoviride, which is M. flavoviride var. flavoviride.[3][4] Previously described varieties of M. flavoviride have been documented, however recent random amplified polymorphic DNA (RAPD) markers have assigned these varieties as new species.[3] The reassigned species are as follows: M. flavoviride Type E is now M. brasiliense; M. flavoviride var. minus is now M. minus; M. flavoviride var. novozealandicum is now M. novozealandicum; and M. flavoviride var. pemphigi is now M. pemphigi.[3][4]

All species in the Metarhizium genus are entomopathogenic, infecting a variety of hosts ranging from those in the orders Coleoptera, Hemiptera, Diptera, and Orthoptera. Hosts are often agriculturally important pests.[3][5][6][7]

M. flavoviride is mainly studied for its potential as a biological control agent to mitigate effects such as pesticide resistance in plants where hosts feed on, as well as to reduce the environmental impact of using pesticides on agricultural crops.[8][9]

As with other Metarhizium species, there has been interest in developing isolates into mycoinsecticides: with work carried out on rice insect pests during the 1970–80s.[10] However, such isolates appear to be more difficult to mass-produce, so there has been less commercial activity than with other Metarhizium species. In light of new molecular techniques, we now know that references to this species for control of locusts (e.g. in early LUBILOSA Programme literature) should apply to Metarhizium acridum.

Description[edit]

Historically, less than 10 species in the Metarhizium genus were distinguished from each other by morphological traits such as differences in conidial shape, colour, and conidiogenous cells. M. flavoviride was one of these, with conidia (spores) ranging in colour from vibrant green to light grey-green.[2][5][11] Conidiogenous cells are 7–11 μm long and clavate, broadly ellipsoid, or ovoid. Conidia are relatively slow to develop.[5][2] These taxonomic morphological differences were later substantiated by allozyme analyses.[12][13][14] However, recent studies indicate that using morphological characteristics is not an accurate method to distinguish between different Metarhizium species and their respective varieties, and instead, molecular and genetic techniques should be used.[3][4][14]

Distribution and habitat[edit]

Metarhizium species and M. flavoviride have been isolated from multiple soil types from all types of climates across all continents (excluding Antarctica) and have been found to infect many different arthropods.[3] M. flavoviride has been found in a wide range of soils, particularly in agricultural habitats; they are often found in soils associated with roots of plants where host pests feed on.[3][6][15] Some data have supported the finding that undisturbed habitats with naturally occurring vegetation are more likely to support entomopathogenic fungi such as M. flavoviride.[16] It is of interest to continue research regarding the abundance and occurrence of M. flavoviride as it concerns using entomopathogenic fungi as a form of biological control.[3]

In the Shaanxi province in China, it was found that the richness of Metarhizium species decreased with increasing elevation.[11]

Entomopathogenicity[edit]

M. flavoviride is facultatively saprophytic. M. flavoviride can be free-living in soil or in the rhizosphere of plants in the absence of a host.[3]

M. flavoviride infects mainly by penetrating the host through the cuticle and colonizes through the body cavity. The fungal propagule germinates, creates an appressorium, and generates a penetration peg which produces degradative enzymes that break down the cuticle. The fungal hyphae use the epicuticular waxes and lipids for growth. M. flavoviride secretes toxic secondary metabolites that facilitate infection of the hemolymph. Death of the host is caused by physical damage and loss of normal function.[6][9]

References[edit]

  1. ^ Species fungorum search Metarhizium (retrieved 27 April 2024)
  2. ^ a b c Humber, Richard A. (1997), "Fungi", Manual of Techniques in Insect Pathology, Elsevier, pp. 153–185, doi:10.1016/b978-012432555-5/50011-7, ISBN 9780124325555, retrieved 2023-05-03
  3. ^ a b c d e f g h i Tóthné Bogdányi; Petrikovszki; Balog; Putnoky-Csicsó; Gódor; Bálint; Tóth (2019-11-02). "Current Knowledge of the Entomopathogenic Fungal Species Metarhizium flavoviride Sensu Lato and Its Potential in Sustainable Pest Control". Insects. 10 (11): 385. doi:10.3390/insects10110385. ISSN 2075-4450. PMC 6920967. PMID 31684065.
  4. ^ a b c Driver, Felice; Milner, Richard J.; Trueman, John W.H. (February 2000). "A taxonomic revision of Metarhizium based on a phylogenetic analysis of rDNA sequence data". Mycological Research. 104 (2): 134–150. doi:10.1017/s0953756299001756. ISSN 0953-7562.
  5. ^ a b c Curran, J.; Driver, F.; Ballard, J.W.O.; Milner, R.J. (May 1994). "Phylogeny of Metarhizium: analysis of ribosomal DNA sequence data". Mycological Research. 98 (5): 547–552. doi:10.1016/s0953-7562(09)80478-4. ISSN 0953-7562.
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