中国一新记录属-加氏菌属

中国一新记录属-加氏菌属 菌物24(4):603-605,2005 Mycosystema GABARNAUDIA,ANEWLYRECORDEDGENUSINCHINA GAOXiao—MeiLUGuo—ZhongSUNXiao—Dong CollegeofPlantProtection,ShenyangAgriculturalUniversity,Shenyang110161) (2InstituteofBio.ResourcesandEnvironmentalScience,DalianNationalitiesUniversity,Dalian116600) ABSTRACT:GabarnaudiabetaewasisolatedfromdiseasedcomgrainscollectedinAnshan,LiaoningProvince.It isthefirstreportofthegenusinChina.Thespecieswasdescribedmorphologicallyandillustratedinthispaper,the culturewasstoredintheCultureCollectionofDalianNationalitiesUniversity(Isolatenumber:IBE000935). KEYWORDSzGabarnaudiabetae,tomgmin,Hyphomycetes GabarnaudiawasestablishedbySamsonandW.GalIlsin1974,thegenusnal'neisdedicatedtothelate FrenchmycologistGabrielAmaud(Samson,1974).ThegenusisproposedtoaccomodateOosporabetaeDelacr., theconidialstateofSphaeronaemellafimicolaMarcha1.GabarnaudiatholisporaAmaudexSamson&W.Gams andG.humicolaSamson&W.Gamsfteleomorph:Sphaeronaemel~humicolaSamson&W.Gams). GabarnaudiaSamson&W.GamsinSamson,StudiesinMycology,6:88,1974. Colonieswhite,growingmoderatelyfastonmalt?agarmedium,withthinaerialmycelia.Hyphaesmooth andseptate,hyaline,upto4lamwide.Conidiophoresbasitonouslyormesotonouslybranche d,thin—walledand littledifferentiatedfromvegetativehyphae.Phialidesawl?shaped,discreteorintegratedinplagiotropicseptate branches,withapicalinternalwall?thickening.Conidiaproducedinbasipetalsuccession,ofteninlongchains, sometimesslimingdownwithage,one?ceHed,cylindrical,fusiformorellipsoidal,smooth, hyaline. Chlamydosporesabsent. Typespecies:Gabarnaudiabetae(Delacr.)Samson&W.Gams. Teleomorph:SphaeronaemellaP.Karst. Gabarnaud/abetae(Delacr.)Samson&WGamsinSamson,StudiesinMycology,6:90,1974.Fig.1 OosporabetaeDelacr.?Bul1.Soc.Myco1.Fr.,13:166.1897(basionym). = Penicilliumbetae(Delacr.)Biourge—LaCellule33:100,1923. = Paecilomycesbetae(Delacr.)Cornford?Trans.Br.Myco1.Soc.,43:155,1960. OosporalasiosphaeriaeAmaud— Bul1.Soc.Myco1.Fr.,68:195.1952(withoutlatindiagnosis). Coloniesfastgrowingonmalt?agar(MA)medium,40.50in/ndiam.in10daysat20.24"C.Mycelium white,usuallythin,thenslightlyfloccosetofuniculosewithage.Odoursweetishorspermatic.Conidiophores arisingfromthesubmergedhyphae,septate,repeatedlybranchedabovetheagarsurface.Phialidesintegrated, awl'shaped,30?47.5×2.0?3.0lam,taperingto1.5—2.0lamatthetip,withinternalwall— thickening;.Conidiain longchmnsorslimingdownwithage,mostlycylindricalorslighflyellipsoidal,witharoundedapexandtruncate base,hyaline,smooth,7.5—18(?30)× 3-6(?7.5)pm.Conidiadousuallynotproduceshortphialidesorsecondary SupportedbyNationalNaturalScienceFoundationofChina(国家自然科学基金项目 no.30499340;no.30270014) Correspondingauthor.E?mail:lvgz@dlnu.edu.cn Received:2005—04—02,accepted:2005—07—28 茁物24卷 conidiawhichsometimesbecomeirregularshape~,ithage Habitat:saprophyte0ndiseasedcorngrains Culturedisolate:TheisolatexA,asderivedfromthediseasedcorngramscollectedfromAnshanLiaoning PfovineenOctober2004fIBE()(m9351 Fig.IGabarnaudiaberne ACoLon?o11MAmedium:BConidiainchainsc100XJ:CConidialI5(1 ) ×).DConidiophoreslI[m× DISCUSSION:GheinenlurphologicaIlylookslike矗 fimicola.whichhaslessfrequentlybranched conidiophoresandconidiaofmoreirregularshapeTheconidiaofthelatterspeciestendtoproduceshort phialideswithnIOWl2rsecondao,conidiaItisvervimportanttOidentil~.,thefreshstrainsbecausetheir differencesanotvesharpinolderstrains. Thegenus[小? JdH[issimilartoSUChgeneraasAcreenonium(sectNectnoidea)andSeptofusidiumby theawl-shapedphialidesandthecomplexbasitonouslybranchedconidiophoresThecoloniesofthelattertwo generalendtogrowslowlyandpoorinpureculture.thecatenateconidialifeone—tomole— celledandthe phialidesareslightlypigmentedandornamentedThespeciesofsect.NectrioideaofAcremon iumdifferfrom Gabanlalaliabyformingconidiainheadsonshort,nalTow,solita~anddiscretephialidesGabarJmudiadiffers fromPaecilomyce.gbyitslarge.usuallybasitonous1),branchedconidiophoresv,'ithlongawl—shapedphialides, whichaofteninlegratedinseplatebranchesTilelarge.elongateconidiaofGabarnaudiaareproducedinlong chains.whichmaypartiallyslimedowninage Duringtheinvestigationolcomseed— bornepathogens,theauthorsencounteredOlleGabarnaudia[so]ate contaminatedbyoreFusal2umspeciesanditwasOBOemisidentifiedasFusarittmspeciesHowever,thefact thattwokindsofconJdiopboresandconidiabewjIderodtheallthginTheconidiaofGabarnaudiawe/'eusually formedinlongchainswhichresemblesthemicroconidiaofFusa~ummonil 油.buttheirconidialshapeand sizeareconspicuouslydifferentfromeachotherThebranchedseptateconidiophoresofGbeteaaquite 4期高晓梅等:中国一新记录属-力口氏菌属 differentfromthoseofFusariummoniliforme.Afterseveraltimesofpurification,eachisolatesofeitherG.betea orFusariumsp.wascompletelyseparated.Chen(2000)describedanewspeciesFusariumcatenulatum,which resemblesthemixedstateofG.beteaandFusariumsp.Chen'Stypeneedstobereexamined. [REFERENCES1 SamsonRA.1974.Paecilomycesandsomealliedhyphomycetes.StudiesinMycology,6:1~117 ChenFJ.2000.Fusariumcatenulatumsp.nov.fromChina.Mycosystema,19(4):459~462 【附中文参考文献】 陈法军,2000.镰刀菌属一新种.链状镰刀菌.菌物,l9(4):459,462 中国一新记录属-力口氏菌属 高晓梅吕国忠2孙晓东2 (.沈阳农业大学植物保护学院,沈阳110161;大连民族学院生物资源与环境研究所,大连116600) 摘要:从辽宁省鞍山市采集的玉米罹病籽粒上分离得到甜菜加氏菌Gabarnaudiabetae.加氏菌 属Gabarnaudia为我国新记录属.本文对其培养形态特征进行了描述,菌种保藏在大连民族学院 真菌菌种保藏中心(菌株号IBE000935). 关键词:甜菜加氏菌,玉米籽粒,丝孢菌 分类:中图分类号:Q939.5文献标识码:A文章编号:1672.6472(2005)04.0603.0605 庆祝王云章教授100寿辰征稿启事 为庆祝我国现代菌物学奠基人之一王云章教授100寿辰,本刊拟将 2006年25卷(3)期做为纪念特辑出版,欢迎投稿(以研究形式). 《菌物》编辑部