A fungal community in plant tissue from the Lower Coal Measures (Langsettian, Lower Pennsylvanian) of Great Britain

Bulletin of geosciences

Taylor TN¹  Dotzler N¹  Galtier J¹  Krings M¹ 

关键词: arborescent lycophyte;    Carboniferous;    coal ball;    fossil fungi;    host response;    periderm;    Peronosporomycetes;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

AdiverseassemblageofmicrofungalremainsoccursinperidermcellsofalycophytefromtheLowerCoalMeasures(Carboniferous)ofGreatBritain.Amongtheremainsareseveraltypesofhyphae,includingseptateformswithcatenulateswellingsandsmall,narrowformsthataremulti-branched.Therearealsoseveraltypesofsphericalstructuresthatdifferfromoneanotherinsize,wallthickness,andornamentation.Themostcommonoftheseisinterpretedasperonosporomyceteoogoniabasedonspecimenswithattachedantheridia.OtherformsmayalsorepresentPeronosporomycetes,butmightaswellbelongtotheZygomycota.Ovalorteardrop-likestructuresthatoccurinclustersorchainsareinterpretedasconidia.Hostreactionsintheperidermcellsarerare,withtheexceptionofsmallcallosities.Althoughitisnotpossibletoconclusivelyidentifythe(precise)systematicaffinitiesofthefungi,thisdiscoveryissignificantbecauseitdemonstratesthatoneofthemostcommonplanttissuesintheCarboniferous(i.e.lycophyteperiderm)providedasuitablehabitatforseveralendophyticorganismsatthesametime.Theoverallexcellentpreservationofthehosttissue,togetherwiththeevidenceofhostreactions,indicatesthatatleastsomeoftheendophyteswerebiotrophic.

【 授权许可】

Unknown