Natural and anthropogenic influences on the spatiotemporal change of degraded meadows in southern Qinghai Province, West China: 1976–2015

The actinobacterial strain YIM 70185T was isolated from a saline soil sample collected from Qinghai province, north-west China, and subjected to a taxonomic investigation. Phylogenetic analysis based on 16S rRNA gene sequences revealed 93.5–96.4 % similarity to members of related genera in the family Micrococcaceae. In the phylogenetic dendrogram based on 16S rRNA gene sequence analysis, strain YIM 70185T formed a separate clade next to the genera Micrococcus and Citricoccus within the family Micrococcaceae. The peptidoglycan type was A4α, l-lys–l-ala–l-Glu. Cell-wall sugars contained glucose and tyvelose. The polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol, an unknown phospholipid and an unknown glycolipid. The menaquinones were MK-9, MK-10 and MK-8 (molar ratio 5 : 2 : 1). The major fatty acids were ai-C15 : 0 and i-C15 : 0 and the DNA G+C content was 66.5 mol%. These chemotaxonomic profiles supported the assignment of strain YIM 70185T to a novel genus within the family Micrococcaceae. The name Zhihengliuella halotolerans gen. nov., sp. nov. is proposed. The type strain of Zhihengliuella halotolerans is YIM 70185T (=DSM 17364T=KCTC 19085T).

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Late Triassic megalodontids (Bivalvia) from the headwaters of the Yangtze River, Qinghai province, west China

Journal of Paleontology ◽

10.1666/05-152.1 ◽

2007 ◽

Vol 81 (6) ◽

pp. 1327-1347 ◽

Cited By ~ 3

Author(s):

Huazhou Yao ◽

Renjie Zhang ◽

John Pojeta ◽

Jinggen Sha ◽

Jianxiong Wang

Keyword(s):

New Species ◽

Yangtze River ◽

Type Species ◽

Upper Triassic ◽

Late Triassic ◽

The Yangtze River ◽

External Appearance ◽

West China ◽

Qinghai Province

A bivalve faunule of six species is described from the Upper Triassic Jiapila Formation at the headwaters of the Yangtze River, southern Qinghai, China. The new species, Neomegalodon cornutus and Quemocuomegalodon circularis, are described. The type species of Quemocuomegalodon, Q. orientus, is revised. Quemocuomegalodon orientus Yao, Sha, and Zhang (2003) is now known from abundant, well-preserved specimens that show great variation in shape, size, thickness of shell, and dentition, and the species Q. longitatus, Yao, Sha, and Zhang (2003) is now placed in synonymy with Q. orientus. There are significant morphologic differences between the external appearance of shelled specimens and the internal molds of species of Quemocuomegalodon. This suggests the need for the re-evaluation of many megalodontid species from elsewhere that are known only from internal molds.

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The Study of Magnetite Iron Ore Separation in Qinghai Province

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.1241 ◽

2011 ◽

Vol 347-353 ◽

pp. 1241-1246

Author(s):

Gui Shan Zheng ◽

Song Bo Ma

Keyword(s):

Energy Saving ◽

Magnetic Separation ◽

Iron Ore ◽

West China ◽

Qinghai Province ◽

Magnetite Ore

Magnetite ore from Qinghai Province West China was studied. Quartz, silicate and olivine are mostly associated with magnetite in native as inclusions, and have micro-fine disseminated structure. Coarse grinding is done for energy saving, and then magnetic separation is processed. In order to meet the industry requirements of concentrate, flotation is processed to improve the grade. A stage grinding and stage flotation processing flowsheet is accomplished finally.

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Sinosporangium album gen. nov., sp. nov., a new member of the suborder Streptosporangineae

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY ◽

10.1099/ijs.0.022186-0 ◽

2011 ◽

Vol 61 (3) ◽

pp. 592-597 ◽

Cited By ~ 19

Author(s):

Yu-Qin Zhang ◽

Hong-Yu Liu ◽

Li-Yan Yu ◽

Jae-Chan Lee ◽

Dong-Jin Park ◽

...

Keyword(s):

New Genus ◽

Diaminopimelic Acid ◽

Rrna Gene ◽

16S Rrna Gene Sequences ◽

West China ◽

Qinghai Province ◽

North West ◽

The Family ◽

Distinct Lineage ◽

Diamino Acid

A Gram-positive, aerobic, non-motile actinobacterium, designated strain 6014T, was isolated from a soil sample collected from Qinghai province, north-west China, and subjected to a polyphasic taxonomic study. The isolate formed elementary branching hyphae and abundant aerial mycelia with globose sporangia on ISP 4 and R2A media. Whole-cell hydrolysates of strain 6014T contained arabinose, galactose and ribose as diagnostic sugars and meso-diaminopimelic acid as the diagnostic diamino acid. The polar lipids consisted of phosphatidylmethylethanolamine, phosphatidylethanolamine, hydroxy-phosphatidylethanolamine, N-acetylglucosamine-containing phospholipids, two unknown phospholipids and an unknown glycolipid. The menaquinone system contained MK-9(H2) and MK-9(H4). The major fatty acids were C14 : 0, i-C15 : 0, C16 : 0 and 10-methyl-C16 : 1. The genomic DNA G+C content of the isolate was 69.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 6014T fell within the radius of the suborder Streptosporangineae, in which the strain formed a distinct lineage next to genera of the family Streptosporangiaceae. Based on data from this polyphasic study, strain 6014T can be readily distinguished from previously described organisms and represents a member of a novel species within a new genus in the suborder Streptosporangineae. The name Sinosporangium album gen. nov., sp. nov. is proposed with 6014T (=DSM 45181T =KCTC 19655T) as the type strain.

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Climate and Anthropogenic Influences on the Spatiotemporal Change in Degraded Grassland in China

Environmental Engineering Science ◽

10.1089/ees.2020.0541 ◽

2021 ◽

Author(s):

Ping Jiang ◽

Dongmei Chen ◽

Jing Xiao ◽

Dafeng Liu ◽

Xinjun Zhang ◽

...

Keyword(s):

Anthropogenic Influences ◽

Spatiotemporal Change ◽

Degraded Grassland

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Spatiotemporal change of habitat quality in ecologically sensitive areas of eastern Qinghai-Tibet Plateau: A case study of the Hehuang Valley, Qinghai Province

资源科学 ◽

10.18402/resci.2020.05.16 ◽

2020 ◽

Vol 42 (5) ◽

pp. 991-1003

Author(s):

Jie ZHU ◽

Jian GONG ◽

Jingye LI ◽

Keyword(s):

Habitat Quality ◽

Tibet Plateau ◽

Spatiotemporal Change ◽

Qinghai Province ◽

Sensitive Areas ◽

Qinghai Tibet Plateau

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Ecologicalization motivations of resources enterprises in the Pan-Qaidam pilot economic zone of Qinghai Province, West China

Journal of Cleaner Production ◽

10.1016/j.jclepro.2017.03.004 ◽

2017 ◽

Vol 152 ◽

pp. 330-338 ◽

Cited By ~ 4

Author(s):

Jianjun Wang ◽

Jay Gao ◽

Yuxiang Cheng ◽

Yiru Kang ◽

Xilai Li

Keyword(s):

West China ◽

Qinghai Province ◽

Economic Zone

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Isoptericola halotolerans sp. nov., a novel actinobacterium isolated from saline soil from Qinghai Province, north-west China

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY ◽

10.1099/ijs.0.63641-0 ◽

2005 ◽

Vol 55 (5) ◽

pp. 1867-1870 ◽

Cited By ~ 39

Author(s):

Yu-Qin Zhang ◽

Peter Schumann ◽

Wen-Jun Li ◽

Guo-Zhong Chen ◽

Xin-Peng Tian ◽

...

Keyword(s):

Type Strain ◽

Saline Soil ◽

Novel Species ◽

Physiological Data ◽

Rrna Gene ◽

16S Rrna Gene Sequences ◽

West China ◽

Qinghai Province ◽

Dna Relatedness ◽

North West

A Gram-positive, non-motile actinobacterium, designated strain YIM 70177T, was isolated from a saline soil sample from Qinghai Province, north-west China. Phylogenetic analysis of this organism based on 16S rRNA gene sequences revealed 98·3 % similarity to Isoptericola variabilis DSM 10177T. Chemotaxonomic data determined for the isolate, such as the peptidoglycan type A4α, variation l-lys–d-Asp, supported the placement of strain YIM 70177T within the genus Isoptericola. Galactose was detected as cell wall sugar. Phospholipids identified were phosphatidylinositol, phosphatidylglycerol and diphosphatidylglycerol, and the predominant menaquinones were MK-9(H4) and MK-9(H2). The major fatty acids were ai-C15 : 0, C16 : 0, ai-C17 : 0 and i-C15 : 0. The DNA G+C content was 72·8 mol%. The low level of DNA–DNA relatedness (27·4 %) to I. variabilis DSM 10177T in combination with differentiating chemotaxonomic and physiological data demonstrated that the isolate YIM 70177T should be classified as representing a novel species of the genus Isoptericola. The name Isoptericola halotolerans sp. nov. is proposed, with strain YIM 70177T (=DSM 16376T=KCTC 19046T) as the type strain.

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