Jadson J S Oliveira, Tiara S Cabral, Ruby Vargas-Isla, José F B Silva, Doriane P Rodrigues, Nelson Menolli, Mariana P Drewinski, Noemia K Ishikawa
{"title":"<i>Lentinula ixodes</i> comb. nov. (<i>Omphalotaceae</i>, <i>Agaricales</i>) including new records in Brazil.","authors":"Jadson J S Oliveira, Tiara S Cabral, Ruby Vargas-Isla, José F B Silva, Doriane P Rodrigues, Nelson Menolli, Mariana P Drewinski, Noemia K Ishikawa","doi":"10.47371/mycosci.2022.08.001","DOIUrl":null,"url":null,"abstract":"<p><p>In the search for new strains of edible mushrooms in the Brazilian Amazon Forest, we found <i>Lentinula</i> specimens different from <i>Lentinula raphanica</i>. These were described morphologically and evaluated phylogenetically within the <i>Lentinula</i> clade. The mating system was determined, and interbreeding compatibility with <i>L. raphanica</i> was verified. The basidiomata have a cinnamon or deep orange to fulvous brown, moist to dry pileus, occasionally with whitish scales; crowded whitish cream lamellae; and an eccentric to lateral stipe. The typical, predominant basidiospores are 4.4-7.2 µm in length. Endogenous, elongate (7.8-14 µm) basidiospores were also found in some specimens. The long spores seem rare and occasional, but nonetheless a novelty for the group. Basidia are homogeneous in size, cheilocystidia are pyriform or bulboid, and caulocystidia are long and spheropedunculate. The hyphae of the pileipellis are pigment-encrusted. The characteristics match those of <i>Agaricus ixodes</i> originally described from Guyana, currently a synonym of <i>Lentinula boryana</i>. In the phylogenetic trees, such taxon appears distinct from <i>L. boryana</i> and sister to <i>L. raphanica</i> with strong support. This unique lineage was confirmed to be reproductively isolated from sympatric <i>L. raphanica</i> strains. <i>Lentinula ixodes</i> comb. nov. is the second species of the genus reported in the Amazon Forest.</p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0e/a7/MYC-63-254.PMC10032364.pdf","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mycoscience","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.47371/mycosci.2022.08.001","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MYCOLOGY","Score":null,"Total":0}
引用次数: 1
Abstract
In the search for new strains of edible mushrooms in the Brazilian Amazon Forest, we found Lentinula specimens different from Lentinula raphanica. These were described morphologically and evaluated phylogenetically within the Lentinula clade. The mating system was determined, and interbreeding compatibility with L. raphanica was verified. The basidiomata have a cinnamon or deep orange to fulvous brown, moist to dry pileus, occasionally with whitish scales; crowded whitish cream lamellae; and an eccentric to lateral stipe. The typical, predominant basidiospores are 4.4-7.2 µm in length. Endogenous, elongate (7.8-14 µm) basidiospores were also found in some specimens. The long spores seem rare and occasional, but nonetheless a novelty for the group. Basidia are homogeneous in size, cheilocystidia are pyriform or bulboid, and caulocystidia are long and spheropedunculate. The hyphae of the pileipellis are pigment-encrusted. The characteristics match those of Agaricus ixodes originally described from Guyana, currently a synonym of Lentinula boryana. In the phylogenetic trees, such taxon appears distinct from L. boryana and sister to L. raphanica with strong support. This unique lineage was confirmed to be reproductively isolated from sympatric L. raphanica strains. Lentinula ixodes comb. nov. is the second species of the genus reported in the Amazon Forest.
期刊介绍:
Mycoscience is the official English-language journal of the Mycological Society of Japan and is issued bimonthly. Mycoscience publishes original research articles and reviews on various topics related to fungi including yeasts and other organisms that have traditionally been studied by mycologists. The research areas covered by Mycoscience extend from such purely scientific fields as systematics, evolution, phylogeny, morphology, ecology, physiology, biochemistry, genetics, and molecular biology, to agricultural, medical, and industrial applications. New and improved applications of well-established mycological techniques and methods are also covered.