کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8364501 | 1542608 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel approach to study composition of in situ produced root-derived dissolved organic matter
ترجمه فارسی عنوان
یک روش جدید برای مطالعه ترکیب مواد محلول در محلول در ریشه
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش خاک شناسی
چکیده انگلیسی
Carbon (C) compounds released from plant roots comprise a significant and reactive fraction of belowground C pools. These root-derived compounds modify rhizosphere soil and play a vital role in the mobility of nutrients and contaminants within ecosystems. Due to their low concentration, fast turnover, and limited spatial distribution throughout the soil, root-derived compounds are difficult to study. This study combined a 13C pulse-chase technique and 1D and 2D nuclear magnetic resonance (NMR) spectroscopy techniques to analyze root-derived compounds produced in real soil. The pulsed samples displayed distinct enrichment in aliphatic and carbohydrate-type compounds indicating that pulse-chase approaches are a viable technique for isolating root-derived from background DOM. However, multiple NMR techniques may be necessary to develop a full profile of root-derived DOM. This is the first use of combined pulse-chase-NMR methodologies to analyze in situ produced root-derived DOM. Such a combination is applicable to various experimental designs and/or environmental scenarios, and can provide valuable information for future rhizosphere science.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Biology and Biochemistry - Volume 76, September 2014, Pages 1-4
Journal: Soil Biology and Biochemistry - Volume 76, September 2014, Pages 1-4
نویسندگان
Carla E. Rosenfeld, M. Luke McCormack, Carmen E. MartÃnez,