Plant diversity and ecology on the Qinghai–Tibet Plateau

Liu, Jianquan; Li, Jialiang; Lai, Yang-Jun

doi:10.1111/jse.12813

Cited by 9 publications

(6 citation statements)

References 27 publications

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“…In September 1990 he visited the herbarium of Uppsala University (UPS) (Li, 2001) to check specimens collected by Dr. Harry Smith (1889–1971), who collected more than 10,000 specimens from China (Herner, 1988), and the following year he visited the herbaria of the Royal Botanic Gardens at Kew (K) and Edinburgh (E), the Berlin Botanical Garden and Botanical Museum (B), and the Muséum National d'Histoire Naturelle in Paris (P). During this journey abroad, he checked specimens of Ranunculaceae, Boraginaceae, Urticaceae and Gesneriaceae, and wrote several taxonomic treatments and an important paper on distribution patterns and migration routes in the Eastern Asiatic Region (Wang, 1992, 1993) that inspired many studies on eastern Asian biogeography (Wen & al., 2014; Nie & al., 2016; Liu & al., 2021; Mao & al., 2021; Zhang & al., 2022).…”

Section: Figmentioning

confidence: 99%

A tribute to Professor Wen‐Tsai Wang (1926–2022)

Xie

Zhang

Zhao

2023

TAXON

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Section: Figmentioning

confidence: 99%

A tribute to Professor Wen‐Tsai Wang (1926–2022)

Xie

Zhang

Zhao

2023

TAXON

View full text Add to dashboard Cite

“…The alpine grassland of northwest Sichuan located in the southeastern margin of the Qinghai-Tibet Plateau has an important ecological function and is a major water source, which is of great significance to the ecological security of the lower reaches of the Yangtze and Yellow Rivers (Lu et al, 2004;Yu et al, 2011). In recent years, with the increasing population and the demands of social development, which have exerted great pressure on desertified areas, the ecological system has been disturbed and natural resources have been depleted in Northwest China.…”

Section: Introductionmentioning

confidence: 99%

Response characteristics of root to moisture change at seedling stage of Kengyilia hirsuta

Chen

Chen²,

Zhang³

et al. 2023

Front. Plant Sci.

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Kengyilia hirsuta is an important pioneer plant distributed on the desertified grassland of the Qinghai-Tibet Plateau. It has strong adaptability to alpine desert habitats, so it can be used as a sand-fixing plant on sandy alpine land. To study the response mechanisms of root morphological and physiological characteristics of K. hirsuta to sandy soil moisture, 10%, 25% and 40% moisture levels were set up through potted weighing water control method. The biomass, root-shoot ratio, root architecture parameters, and biochemical parameters malondialdehyde, free proline, soluble protein, indole-3-acetic acid, abscisic acid, cytokinin, gibberellin, relative conductivity and antioxidant enzyme activities were measured in the trefoil stage, and the response mechanisms of roots at different moisture levels were analyzed. The results showed that with the increase of soil moisture, root morphological indexes such as root biomass, total root length, total root volume and total root surface increased, while the root topological index decreased continuously. The malondialdehyde content, relative conductivity, superoxide dismutase activity, peroxidase activity, catalase activity, free proline content, soluble protein content, abscisic acid content and cytokinin content at the 25% and 40% moisture levels were significantly decreased compared with the 10% level (P< 0.05). Thus, the root growth of K. hirsuta was restricted by the 10% moisture level, but supported by the 25% and 40% moisture levels. An artificial neural network revealed that total root length, total root surface area, root link average length, relative conductivity, soluble protein, free proline and moisture level were the key factors affecting root development. These research results could contribute to future agricultural sustainability.

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“…In order to explore the mycotoxin production of A. alternata , a total of 65 bacterial strains were collected from different coordinate positions on the Qinghai-Tibet Plateau, then nine high yield toxic strains were selected and the gene sequences of each were determined. Tibet has a special geographical location, high altitude, strong ultraviolet light, and large temperature difference between day and night, which is bound to affect the toxic production of parasitic fungi in Triticeae crops on the Qinghai-Tibet Plateau ( Liu et al, 2021 ; Yao et al, 2021 ). To clarify these rules, the nine selected bacterial strains were cultured under different experimental conditions, and their growth and toxicity were analyzed.…”

Section: Introductionmentioning

confidence: 99%

Risk assessment of mycotoxins, the identification and environmental influence on toxin-producing ability of Alternaria alternate in the main Tibetan Plateau Triticeae crops

et al. 2023

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In order to find out the contamination of mycotoxins in Triticeae crops of Qinghai-Tibet Plateau, a total of 153 Triticeae crop fruits were collected as target samples, and 22 mycotoxins were tested. High detection rate was found in the Alternaria mycotoxins, including tentoxin (TEN), tenuazonic acid (TEA) and alternariol (AOH) toxins. To further clarify the production rules of Alternaria mycotoxins. A number of 9 high yield toxic strains were selected from 65 bacterial strains and the gene sequences of each were determined. The nine selected Alternaria alternate were cultured under specific pH of the culture medium, temperature and ultraviolet (UV) irradiation, and their growth and toxicity were analyzed. The results showed that the toxic capacity of most A. alternate increased with the increase of culture environment temperature and decreased with the increase of UV irradiation. However, the production of some toxins did not meet this principle, or even met the principle of relativity. In the culture experiments, a total of five Alternaria toxins were detected as positive, which were TEN, AOH, alternariol monomethyl ether (AME), TEA, and Alternaria (ALT). The altenusin (ALS) toxin was not detected in the metabolites of the nine Alternaria strains. It indicated that the TEN, AOH, AME, TEA, and ALT toxins should be particularly valued in the future risk assessments. This finding provided comprehensive information of mycotoxins contamination in the Tibetan Plateau Triticeae crops, it pointed out a direction to the Tibetan Plateau food crops’ quality control.

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Plant diversity and ecology on the Qinghai–Tibet Plateau

Cited by 9 publications

References 27 publications

A tribute to Professor Wen‐Tsai Wang (1926–2022)

A tribute to Professor Wen‐Tsai Wang (1926–2022)

Response characteristics of root to moisture change at seedling stage of Kengyilia hirsuta

Risk assessment of mycotoxins, the identification and environmental influence on toxin-producing ability of Alternaria alternate in the main Tibetan Plateau Triticeae crops

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