scholarly journals Biodiversity of Entomopathogenic Fungi in the Soils of South China

2019 ◽  
Vol 7 (9) ◽  
pp. 311 ◽  
Author(s):  
Xiaoyan Niu ◽  
Weiwen Xie ◽  
Jing Zhang ◽  
Qiongbo Hu
Keyword(s):  
South China ◽  
Entomopathogenic Fungi ◽  
Wiener Index ◽  
Soil Samples ◽  
Natural Environments ◽  
Guangxi Province ◽  
Rdna Its ◽  
Purpureocillium Lilacinum ◽  
Rdna Its Sequences ◽  
Sequences Analysis

The southern part of China, located in tropical and south subtropical areas has unique natural environments, but the distributions of entomopathogenic fungi (EFs) in the soil are not clear. In this research, 198 soil samples were collected from the four Provinces (Autonomous Region) of South China. The results indicated that a total of 292 fungal isolates were obtained from 176 soil samples. Then, based on the morphological and rDNA-ITS sequences analysis, 213 EFs isolates of 19 species in 12 genera were identified. Furthermore, Purpureocillium lilacinum with 75 isolates was recognized as the absolutely dominant EF species, while Isaria javanica, Metarhizium anisopliae, and Beauveria bassiana (respectively with 29, 26, and 26 isolates) were the richer species. The data also indicated that Guangxi Province has the best EFs diversity with the Shannon–Wiener index (SWI) of 2.29, the soils covered with grass had the best EFs diversity with the 2.14 SWI, while the orchard and fallow land had the lowest SWI of 1.52, which suggested that the diversity of plants and insects on ground, as well as the massive application of broad-spectrum fungicides, affect the EFs diversity in the soil. Finally, the rare species, Nectria mauritiicola and Scopulariopsis brumptii were first reported about their entomopathogenic activities against Bemisia tabaci. Our experiment will give new insights to the understanding of EFs distribution characteristics and their biodiversity conservation.

scholarly journals Cortinarius alpinus as an example for morphological and phylogenetic species concepts in ectomycorrhizal fungi

Sommerfeltia ◽  
2008 ◽  
Vol 31 (1) ◽  
pp. 161-177 ◽  
Author(s):  
U. Peintner
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Related Species ◽  
Dry Weight ◽  
Species Concepts ◽  
Its Sequences ◽  
Phylogenetic Species ◽  
Closely Related Species ◽  
Rdna Its ◽  
Rdna Its Sequences ◽  
Distinguishing Character

Cortinarius alpinus as an example for morphological and phylogenetic species concepts in ectomycorrhizal fungiExtensive morphological and molecular analyses of closely related species from alpine, subalpine and montane habitats should enable a comparison of ecological, morphological and phylogenetic species concepts in ectomycorrhizal mushrooms. One fundamental question of this study was whether alpine species really exist, and which criteria, besides the specific habitat, could reliably be used for the de-limitation of such taxa. For this reason, 56 rDNA ITS sequences were generated or downloaded from GenBank for 10 closely related species of Cortinarius subgenus Myxacium, section Myxacium. Several collections were sequenced for each of the following taxa: Cortinarius absarokensis, C. alpinus, C. favrei, C. fennoscandicus, C. grallipes, C. mucosus, C. muscigenus, C. septentrionalis, C. trivialis and C. vernicosus. Moreover, spore statistics were carried out for 38 collections of alpine and subalpine taxa. These data provide clear evidence for C. favrei being a synonym of C. alpinus. C. absarokensis and C. alpinus can clearly be delimited based on pileus diameter and average dry weight per basidiome, even in overlapping habitats, but spore size and shape is not a good distinguishing character. Phylograms have very short branches, and base differences between ITS sequences are generally very low in this group, and give no resolution for the included taxa of this section. Based on these results, species concepts of ectomycorrhizal mushrooms are discussed in detail.

Phylogenetic relationships among the species of Elymus sensu lato in Triticeae (Poaceae) based on nuclear rDNA ITS sequences

2009 ◽  
Vol 45 (6) ◽  
pp. 696-706 ◽  
Author(s):  
C. Zhang ◽  
X. Fan ◽  
H. Q. Yu ◽  
J. Zeng ◽  
H. Q. Zhang ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Its Sequences ◽  
Nuclear Rdna ◽  
Rdna Its ◽  
Rdna Its Sequences

Phylogenetic relationships of Microsphaera and Erysiphe section Erysiphe (powdery mildews) inferred from the rDNA ITS sequences

Mycoscience ◽  
1999 ◽  
Vol 40 (3) ◽  
pp. 259-268 ◽  
Author(s):  
Susumu Takamatsu ◽  
Tetsuya Hirata ◽  
Yukio Sato ◽  
Yukihiko Nomura
Keyword(s):  
Phylogenetic Relationships ◽  
Its Sequences ◽  
Rdna Its ◽  
Powdery Mildews ◽  
Rdna Its Sequences

A Phylogenetic Study of Cuphea (Lythraceae) Based on Morphology and Nuclear rDNA ITS Sequences

2006 ◽  
Vol 31 (4) ◽  
pp. 764-778 ◽  
Author(s):  
Shirley A. Graham ◽  
John V. Freudenstein ◽  
Melissa Luker
Keyword(s):  
Its Sequences ◽  
Phylogenetic Study ◽  
Nuclear Rdna ◽  
Rdna Its ◽  
Rdna Its Sequences

scholarly journals Identification of Anoectochilus based on rDNA ITS sequences alignment and SELDI-TOF-MS

2009 ◽  
pp. 727-735 ◽  
Author(s):  
Chuan Gao ◽  
Fusheng Zhang ◽  
Jun Zhang ◽  
Shunxing Guo ◽  
Hongbo Shao
Keyword(s):  
Its Sequences ◽  
Rdna Its ◽  
Rdna Its Sequences ◽  
Sequences Alignment ◽  
Tof Ms

Detection of species within the Xerocomus subtomentosus complex in Europe using rDNA–ITS sequences

2006 ◽  
Vol 110 (3) ◽  
pp. 276-287 ◽  
Author(s):  
Andy F.S. Taylor ◽  
Alan E. Hills ◽  
Giampaolo Simonini ◽  
Ernst E. Both ◽  
Ursula Eberhardt
Keyword(s):  
Its Sequences ◽  
Rdna Its ◽  
Rdna Its Sequences

scholarly journals Phylogenetic model of <i>Follicucullus</i> lineages (Albaillellaria, Radiolaria) based on high-resolution biostratigraphy of the Permian Bancheng Formation, Guangxi, South China

2014 ◽  
Vol 33 (2) ◽  
pp. 179-192 ◽  
Author(s):  
Lei Zhang ◽  
Tsuyoshi Ito ◽  
Qinglai Feng ◽  
Martial Caridroit ◽  
Taniel Danelian
Keyword(s):  
High Resolution ◽  
South China ◽  
Guangxi Province ◽  
Phylogenetic Model ◽  
Stratigraphic Ranges ◽  
Abundant Genus ◽  
Radiolarian Assemblages

Abstract. High-resolution sampling was performed on four Permian sections in Guangxi Province, South China (Gujingling, Sanpaoling, Guoyuan and Yutouling sections). We report abundant and well-preserved Guadalupian–Lopingian radiolarian assemblages, with 25 species belonging to three genera of the order Albaillellaria. Among them, the most abundant genus is Follicucullus with 17 species: F. bipartitus, F. charveti, F. sp. cf. F. charveti, F. dilatatus, F. falx, F. sp. cf. F. falx, F. guangxiensis, F. hamatus, F. monacanthus, F. sp. cf. F. monacanthus, F. orthogonus, F. sp. cf. F. orthogonus, F. porrectus, F. scholasticus, F. sp. cf. F. scholasticus, F. ventricosus and F. sp. cf. F. ventricosus. On the basis of composite stratigraphic ranges, this study suggests four Interval Zones in ascending order, namely F. monacanthus, F. porrectus, F. scholasticus and F. charveti Interval Zones. We provide a phylogenetic model for Follicucullus based on their morphological affinities and stratigraphic distribution. The genus Follicucullus originated from Pseudoalbaillella fusiformis, with F. monacanthus as the forerunner species from which two contemporary species then radiated: F. dilatatus and F. porrectus. Follicucullus porrectus is a long-lasting species, it is abundant in our material and several Follicucullus lineages originated from it. In terms of evolution it is considered to be the ancestor of a number of Follicucullus species.

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