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Salt tolerance of a wild ecotype of vetiver grass (Vetiveria zizanioides L.) in southern China

Overview of attention for article published in Botanical Studies, October 2016
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Title
Salt tolerance of a wild ecotype of vetiver grass (Vetiveria zizanioides L.) in southern China
Published in
Botanical Studies, October 2016
DOI 10.1186/s40529-016-0142-x
Pubmed ID
Authors

Wan-gou Liu, Jin-xiang Liu, Mei-ling Yao, Qi-fu Ma

Abstract

Vetiver grass (Vetiveria zizanioides L.) is widely used in more than 120 countries for land management (e.g. rehabilitation of saline lands). A wild ecotype of vetiver grass was found in southern China in the 1950s, but little is known about its adaptability to saline stress. For the purpose of understanding its tolerance to salinity as well as corresponding tolerance mechanisms, in a greenhouse with natural lighting, seedlings were grown in culture solutions and subjected to a range of NaCl concentrations for 18 days. Compared to no NaCl treatment, 200 mM NaCl significantly reduced leaf water potential, leaf water content, leaf elongation rate, leaf photosynthetic rate and plant relative growth rate and increased leaf malondialdehyde (MDA) content, but the parameters showed only slight reduction at 150 mM NaCl. In addition, salinity caused an increase in the activity of antioxidant enzymes in leaves. Moreover, increasing NaCl levels significantly increased Na(+) but decreased K(+) concentrations in both roots and leaves. The leaves had higher K(+) concentrations at all NaCl levels, but lower Na(+) concentrations compared to the roots, thereby maintaining higher K(+)/Na(+) ratio in leaves. Our results showed that the salinity threshold of this wild vetiver grass is about 100 mM NaCl, i.e. highly tolerant to salt stress. This wild vetiver grass has a high ability to exclude Na(+) and retain K(+) in its leaves, which is a critical strategy for salt tolerance.

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Geographical breakdown

Country Count As %
Unknown 30 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 20%
Researcher 4 13%
Student > Bachelor 3 10%
Lecturer 2 7%
Student > Master 2 7%
Other 3 10%
Unknown 10 33%
Readers by discipline Count As %
Agricultural and Biological Sciences 5 17%
Engineering 5 17%
Environmental Science 4 13%
Earth and Planetary Sciences 2 7%
Psychology 1 3%
Other 2 7%
Unknown 11 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 June 2017.
All research outputs
#22,778,604
of 25,394,764 outputs
Outputs from Botanical Studies
#145
of 188 outputs
Outputs of similar age
#286,978
of 327,259 outputs
Outputs of similar age from Botanical Studies
#6
of 6 outputs
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So far Altmetric has tracked 188 research outputs from this source. They receive a mean Attention Score of 4.5. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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