Arsenic in rice--understanding a new disaster for South-East Asia.
نویسنده
چکیده
A study by Yongguan Zhu and co-workers has added greatly to our understanding of arsenic dynamics in the rhizosphere of paddy rice. Their finding that arsenic is sequestered in iron plaque on root surfaces in plants, regulated by phosphorus status, and that there is considerable varietal variation in arsenic sequestration and subsequently plant uptake, offers a hope for breeding rice for the new arsenic disaster in South-East Asia – the contamination of paddy soils with arsenic.
منابع مشابه
Arsenic-induced straighthead: an impending threat to sustainable rice production in South and South-East Asia!
Straighthead is a physiological disorder of rice (Oryza sativa L.) that results in sterile florets with distorted lemma and palea, and the panicles or heads may not form at all in extreme cases. Heads remain upright at maturity, hence the name 'straighthead'. The diseased panicles may not emerge from the flag leaf sheath when the disease is severe. Straighthead disease in rice results in poorly...
متن کاملPhytotoxicity of arsenate and salinity on early seedling growth of rice (Oryza sativa L.): a threat to sustainable rice cultivation in South and South-East Asia.
Arsenic (As) contamination is an important environmental consequence in some parts of salinity-affected South (S) and South-East (SE) Asia. In this study, we investigated the individual and combined phytotoxicity of arsenic (As) [arsenate; As(V)] and salinity (NaCl) on early seedling growth (ESG) of saline-tolerant and non-tolerant rice varieties. Germination percentage (GP), germination speed ...
متن کاملPhytotoxicity of arsenate and salinity on early seedling growth of rice (oryza sativa l.): A threat to sustainable rice cultivation in South and South- East Asia Author(s)
Arsenic (As) contamination is an important environmental consequence in some parts of salinity-affected South (S) and South-East (SE) Asia. In this study, we investigated the individual and combined phytotoxicity of arsenic (As) [arsenate; As(V)] and salinity (NaCl) on early seedling growth (ESG) of saline-tolerant and non-tolerant rice varieties. Germination percentage (GP), germination speed ...
متن کاملThe relation between rice consumption, arsenic contamination, and prevalence of diabetes in South Asia
Rice is the major staple food for about two billion people living in Asia. It has been reported to contain considerable amount of inorganic arsenic which is toxic to pancreatic beta cells and disrupt glucose homeostasis. Articles and conference papers published between 1992 and 2017, indexed in Scopus, PubMed, EMBASE, Google, and Google scholar were used. Arsenic exposure has been associated wi...
متن کاملبررسی غلظت آرسنیک در نمونه‌های برنج و دوز ورودی به انسان در منطقه میداوود، خوزستان
Background and Objective: Arsenic accumulation in rice has become a major disaster in the recent decade. A number of studies indicated that rice is a major source of arsenic pollution in human diets. This study assessed the arsenic (As) accumulation in rice grain in Meydavood where rice is the main agricultural crop of the region. This research studied the probable presence of arsenic in the ri...
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ورودعنوان ژورنال:
- Trends in plant science
دوره 9 9 شماره
صفحات -
تاریخ انتشار 2004