کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8887082 | 1628030 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
How does the endophytic fungus Mucor sp. improve Arabidopsis arenosa vegetation in the degraded environment of a mine dump?
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کلمات کلیدی
ABAStrigolactonesNaOClZIPABCPGPREtOHZIFMSRCDFMurashige and Skoog - Murashige و SkoogEthanol - اتانولEthylene - اتیلنabscisic acid - اسید آبسزیکjasmonic acid - اسید جاسونیکSalicylic acid - اسید سالیسیلیکAuxin - اکسینBrassinosteroids - برسینستروئید هاcation diffusion facilitator - تسهیل پخش کاتیونPlant growth promoting rhizobacteria - رشد گیاهی رشد ریزوباکتریومSodium hypochlorite - سدیم هیپوکلریتPhosphorus - فسفرToxic metals - فلزات سمیEndophytic fungi - قارچ های اندوفیتNutrients - مواد مغذیRoot hairs - موهای ریشهnatural resistance-associated macrophage protein - پروتئین ماکروفاژ مرتبط با مقاومت طبیعیNramp - چرت زدن
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
The endophytic fungus Mucor sp. was isolated from Arabidopsis arenosa inhabiting post mining wastes lands. Its role in plant adaptation to toxic metal enriched environment was evaluated. Plants inoculated with the fungus yielded significantly more biomass. Their growth response was correlated with significant elongation of root hairs, an improved water and P status and a significant upregulation of the expression of genes associated with nutrient uptake. The mechanism of root hair elongation was investigated with auxin and ethylene insensitive Arabidopsis thaliana mutants. The results clearly indicate that the root hair elongation phenotype results from fungi induced alterations in ethylene metabolism. The upregulation of close to 50 genes associated with ethylene biosynthesis and signaling confirm these results. The accumulation of Zn and Fe was lower in endophyte inoculated plants. Additionally, root to shoot translocation of Fe, Cd and Zn was improved. The expression of metal transporters associated with metal influx, efflux and distribution within the plant corresponded with altered metal homeostasis. The results of this study clearly show that the endophytic fungus plays an important role in the adaptation of the non-mycorrhizal A. arenosa to metal toxicity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental and Experimental Botany - Volume 147, March 2018, Pages 31-42
Journal: Environmental and Experimental Botany - Volume 147, March 2018, Pages 31-42
نویسندگان
P. RozpÄ
dek, A. Domka, R. Ważny, M. Nosek, R. JÄdrzejczyk, K. Tokarz, K. Turnau,