Phytochytrium and Sparrowiella, two new polycentric genera in Cladochytriales
Phytochytrium and Sparrowiella, two new polycentric genera in Cladochytriales
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Phytochytrium 和 Sparrowiella，枝壶菌目中两个新的多中心属
DOI：
10.1007/s11557-022-01791-3
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发表时间：
2022
影响因子：
2.4
通讯作者：
Longcore, Joyce E.
中科院分区：
文献类型：
--
作者：
Jerônimo, Gustavo H.;Simmons, D. Rabern;Amses, Kevin R.;Seto, Kensuke;James, Timothy Y.;Pires-Zottarelli, Carmen L.;Longcore, Joyce E.
枝壶菌属由多个单中心和多中心壶菌谱系组成，它们通常在水生和陆生生态系统的藻类和腐烂植物材料中发现。虽然单中心的种类在壶菌门中更常见，但近年来还发现了更多的多中心壶菌。在我们正在进行的努力，以增加壶菌的多样性的知识，我们发现了两个多中心壶菌洋葱皮诱饵，产生的根霉菌没有描述的枝壶菌属或像那些属在其他订单。这两个新发现的菌株的根霉菌由等直径的丝状体组成，缺乏像在Cladochytrium或Nowakowskiella中发现的那些丝状体。游动孢子囊和休眠孢子都在这些丝状体的短的直角分支上发育。我们对rDNA的大小亚基的分析表明，这两个分离物属于枝壶菌目（Cladochytriales）的一个主要单中心分支的不同分支。et sp. nov.群，包括两个单着丝粒菌株和Sparrowiella insolitagen。et sp. nov.是一个独立的谱系，与一个单中心种有较远的亲缘关系。我们已经扩大了Septochytriaceae的概念，包括这个分支。祖先状态的重建使我们能够第一次假设一个可能的增长模式的共同祖先，使起源的顺序，除了证实不可靠的性质，菌体的发展作为一个分类特征。
Cladochytrialescomprise multiple monocentric and polycentric lineages of chytrids, which are commonly found as saprobes in algae and decaying plant material in aquatic and terrestrial ecosystems. Although monocentric species are more common among theChytridiomycota, additional polycentric chytrids have been described in recent years. During our ongoing effort to add to the knowledge of the diversity of chytrids, we found two polycentric chytrids on onion skin bait that produce rhizomycelia like none of described cladochytrialean genera or like those of genera in other orders. The rhizomycelia of these two newly found isolates consist of isodiametric filaments that lack swellings such as those found in eitherCladochytriumorNowakowskiella. Both zoosporangia and resting spores develop on short, right-angled offshoots from these filaments. Our analyses of the small and large subunits of rDNA indicate that these two isolates belong to separate branches of a predominantly monocentric clade of theCladochytriales.Phytochytrium stagnumgen. et sp. nov. groups with two monocentric strains andSparrowiella insolitagen. et sp. nov. are in an independent lineage distantly related to a monocentric species. We have expanded the concept ofSeptochytriaceaeto include this clade. The ancestral state reconstruction allowed us to hypothesize for the first time a possible growth pattern of the common ancestral that gave origin to the order, besides to corroborate the unreliable nature of thalli’s development as a taxonomic character.
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影响因子：
2.8
作者：
Jeronimo, Gustavo H.;Jesus, Ana L.;Pires-Zottarelli, Carmen L. A.
通讯作者：
Pires-Zottarelli, Carmen L. A.
影响因子：
--
作者：
Mozley-Standridge, Sharon E.;Letcher, Peter M.;Simmons, D. Rabern
通讯作者：
Simmons, D. Rabern
影响因子：
3.3
作者：
James, Timothy Y.;Stenlid, Jan;Johannesson, Hanna
通讯作者：
Johannesson, Hanna
具有巨大游动孢子的新壶菌：SEPTOCHYTRIUM MACROSPORUM SP。
影响因子：
3
作者：
J. S. Karling
通讯作者：
J. S. Karling
影响因子：
5.4
作者：
Simmons DR;Bonds AE;Castillo BT;Clemons RA;Glasco AD;Myers JM;Thapa N;Letcher PM;Powell MJ;Longcore JE;James TY
通讯作者：
James TY