کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6307028 1618826 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Arbuscular mycorrhizal fungi reduced the ratios of inorganic/organic arsenic in rice grains
ترجمه فارسی عنوان
قارچ های میکوریزا آربوسکول نسبت آرسنیک غیر آلی / آلی را در دانه های برنج کاهش می دهد
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- AMF had significant effects on As(III), As(V), DMA and total As conc. in grains.
- AMF reduced the ratios of inorganic/organic As concentrations in rice grains.
- AMF decreased significantly total As and inorganic As conc. in grains of Handao 3.
- As in grains is positively correlated with As in the soil solution of rhizosphere.

Arbuscular mycorrhizal fungi (AMF) - Rhizophagus intraradices was inoculated to rice to investigate its effects on arsenic (As) uptake, grain As speciation, and rhizospheric As concentration of six rice cultivars grown in As-amended soil (60 mg As kg−1 soil). The AMF inoculation induced either positive, neutral or negative responses in rice grown in As contaminated soil, suggesting that functional diversity may exist in AMF symbiosis when As is taken up and transferred. The ratios of inorganic/organic As concentrations in rice grains of all cultivars were significantly reduced by AMF, that involved the transformation of inorganic As into less toxic organic form dimethylarsinic acid (DMA) in rice. AMF decreased significantly total As and inorganic As concentrations in rice grains of Handao 3. Positive correlations (R2 = 0.30-0.56, P < 0.05) between As in the rhizospheric soil solution and As in rice grain at different periods were observed. This inferred that the As survey of soil solution can be an effective measure for evaluating As in grains.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 145, February 2016, Pages 224-230
نویسندگان
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