Elemental allelopathy by an arsenic hyperaccumulating fern, Pteris vittata L.
نویسندگان
چکیده
منابع مشابه
Phytoremediation of arsenic-contaminated groundwater by the arsenic hyperaccumulating fern Pteris vittata L.
Arsenic concentrations in a much larger fraction of U.S. groundwater sources will exceed the maximum contaminant limit when the new 10 microg L(-1) EPA standard for drinking water takes effect in 2006. Thus, it is important to develop remediation technologies that can meet this new standard. Phytoremediation of arsenic-contaminated groundwater is a relatively new idea. In this research, an arse...
متن کاملAbsorption of foliar-applied arsenic by the arsenic hyperaccumulating fern (Pteris vittata L.).
The fact that heavy metals can enter various domains of the plant system through foliar pathways spurred us to explore if the fronds of the Chinese brake fern (Pteris vittata L.), a hyperaccumulator of arsenic, a carcinogenic metalloid, was proficient in absorbing arsenic in the form of sprays. The specific objective of this study was to investigate the impact of frond age, form of arsenic, and...
متن کاملCritical Review The Arsenic Hyperaccumulator Fern Pteris vittata L
Q I N G E N X I E , † X I U L A N Y A N , ‡ X I A O Y O N G L I A O , * , ‡ A N D X I A L I * , † State Key Laboratory of Plant Cell and Chromosome Engineering, Center of Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, China, and Institute of Geographic Sciences and Natural Resources Research, Chinese Aca...
متن کاملArsenic-resistant proteobacterium from the phyllosphere of arsenic-hyperaccumulating fern (Pteris vittata L.) reduces arsenate to arsenite.
An arsenic-resistant bacterium, AsRB1, was isolated from the fronds of Pteris vittata grown in a site contaminated with copper chromium arsenate. The bacterium exhibited resistance to arsenate, arsenite, and antimony in the culture medium. AsRB1, like Pseudomonas putida, grew on MacConkey and xylose-lactose-desoxycholate agars and utilized citrate but, unlike P. putida, was positive for indole ...
متن کاملA novel arsenate reductase from the arsenic hyperaccumulating fern Pteris vittata.
Pteris vittata sporophytes hyperaccumulate arsenic to 1% to 2% of their dry weight. Like the sporophyte, the gametophyte was found to reduce arsenate [As(V)] to arsenite [As(III)] and store arsenic as free As(III). Here, we report the isolation of an arsenate reductase gene (PvACR2) from gametophytes that can suppress the arsenate sensitivity and arsenic hyperaccumulation phenotypes of yeast (S...
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ژورنال
عنوان ژورنال: Journal of Plant Ecology
سال: 2017
ISSN: 1752-9921,1752-993X
DOI: 10.1093/jpe/rtx020