Lentinula ixodes comb. nov. (Omphalotaceae, Agaricales) including new records in Brazil.

IF 1.5 4区 生物学 Q4 MYCOLOGY
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
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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.

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香菇。11 .在巴西发现的新记录(鞘翅目,鞘翅目)。
在巴西亚马逊森林寻找新的食用菌菌株时,我们发现了与Lentinula raphanica不同的Lentinula标本。在香菇枝中对这些进行了形态学描述和系统发育评价。确定了其配种制度,并对其杂交亲和性进行了验证。担子具肉桂色或深橘色至黄褐色,菌毛湿润至干燥,偶有白色鳞片;拥挤的白色奶油状薄片;还有一个偏心到侧向的柱头。典型的主要担子孢子长4.4-7.2µm。在一些标本中还发现了内源性的细长(7.8-14µm)担子孢子。长孢子似乎很少见,但对这个群体来说仍然是新奇的。担子大小均匀,掌囊体呈梨形或球球状,茎囊体长且球形。绒毛的菌丝被色素包裹。这些特征与最初从圭亚那描述的蘑菇(Agaricus ixodes)相匹配,后者目前是香菇(Lentinula boryana)的同义词。在系统发育树上,该分类群与L. boryana和L. raphanica有明显的区别,并有很强的支持。这一独特的谱系被证实是从同域共生L. raphanica菌株中生殖分离出来的。香菇。11 .是亚马逊森林报告的该属的第二种。
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来源期刊
Mycoscience
Mycoscience MYCOLOGY-
CiteScore
3.00
自引率
7.10%
发文量
32
审稿时长
3 months
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.
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