Topic
Lycogala
About: Lycogala is a research topic. Over the lifetime, 11 publications have been published within this topic receiving 64 citations.
Papers
TL;DR: A comparison of 83 sequences of species in the genera Lycogala, Reticularia and Tubifera with a recent two-gene phylogeny of the bright-spored myxomycetes resulted in a similar topology of both Bayesian and maximum likelihood trees and placed A. bombarda, A. morula and A. repens in one well delimited clade within Reticulariaceae.
Abstract: Based on morphological investigations and a phylogeny constructed with partial sequences of the SSU rDNA gene, we revalidate the genus Alwisia and propose the combination Alwisia bombarda Berk. & Broome to be used against Tubifera bombarda (Berk. & Broome) G.W. Martin. Two new species, Alwisia morula and A. repens, are described based on material collected respectively in Costa Rica and Australia. Both new species lack a capillitium and possess individually stalked subspherical sporothecae. Alwisia repens differs from A. morula by its procumbent stalks and iridescent peridium. A comparison of 83 sequences of species in the genera Lycogala, Reticularia and Tubifera with a recent two-gene phylogeny of the bright-spored myxomycetes resulted in a similar topology of both Bayesian and maximum likelihood trees and placed A. bombarda, A. morula and A. repens in one well delimited clade within Reticulariaceae.
37 citations
TL;DR: The structure of the capillitium in Alwisia bombarda is very similar to that found in the genera Dianema and Lycogala, thus providing a new argument for a close relationship between the Reticulariaceae and Dianemataceae and also for considering the tubular threads of LyCogala as representing a true capllitium.
Abstract: W e studied the capillitial structures produced in Alwisia bombarda (Reticulariaceae, Myxomycetes) by light and electron microscopy. This species develops tubular threads inside of clustered but still separate sporocarps with intact walls forming a cup. These threads have been considered to be a pseudocapillitium for a long time, but they do not represent remains of confluent peridia and thus do not correspond to the classical definition of a pseudocapillitium. Instead, they should be considered as a true capillitium. The structure of the capillitium in A. bombarda is very similar to that found in the genera Dianema and Lycogala, thus providing a new argument for a close relationship between the Reticulariaceae and Dianemataceae and also for considering the tubular threads of Lycogala as representing a true capillitium.
11 citations
TL;DR: An expedition to Western Nigeria in 1966 has added 10 species to the known records, and Comatricha nigra (Pers.) Schroet.
Abstract: An expedition to Western Nigeria in 1966 has added 10 species to the known records. Arcyria major (G. List.) B. Ing, Licea biforis Morg. and Physarella oblonga (Berk. & Curt.) Morg. f. alba Alexop. are recorded for the first time from Africa, and Comatricha nigra (Pers.) Schroet. and Lycogala exiguum Morg. are new for West Africa.
8 citations
TL;DR: It was concluded that interspecies variation of the ITS1-5.8SrDNA-ITS2 region is high enough to differentiate species, but this region did not reflect the evolutionary relationships between the myxomycetes species.
Abstract: Seven different PCR primers targeting 18 different myxomycetes genera were designed and ribosomal DNA ITS1-5.8SrDNA-ITS2 regions of 52 morphologically characterized species from Turkey were amplified and sequenced. The studied species belong to the genera Arcyria, Badhamia, Ceratiomyxa, Collaria, Comatricha, Cribraria, Diachea, Diderma, Didymium, Enerthenema, Lamproderma, Lycogala, Perichaena, Physarum, Reticularia, Stemonitis, Stemonitopsis, and Trichia. Significant ITS region size and sequence variations were observed among the analyzed species. The ITS based phylogenetic tree did not reflect evolutionary relationships at genus or higher level. The only exception was the genus Didymium, which formed a clearly distinctive cluster in the phylogenetic tree containing 18 different genera. It was concluded that interspecies variation of the ITS1-5.8S-ITS2 region is high enough to differentiate species, but this region did not reflect the evolutionary relationships between the myxomycetes species. Hence, we suggested that sequencing of the ITS region could only be used as a supporting tool for the phenotypic identification, not for revealing the evolutionary relationships between the myxomycetes species.
7 citations
1 Dec 2008
TL;DR: The etalio de Lycogala terrestre es un globulo simple del cual se proyectan unas papilas, en tanto el material cortical se dirige hacia el interior del globulo, separandolo for formar el pseudocapilicio lleno de aire.
Abstract: En su fase inicial, el etalio de Lycogala terrestre es un globulo simple del cual se proyectan unas papilas, en tanto el material cortical se dirige hacia el interior del globulo, separandolo para formar el pseudocapilicio lleno de aire. Las mitocondrias que se alinean a lo largo del pseudocapilicio en formacion parecen ser las responsables del bombeo de agua hacia su exterior, dando como resultado la separacion que le dara origen
7 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2015 | 2 |
| 2014 | 2 |
| 2008 | 1 |
| 2006 | 1 |
| 1998 | 1 |