کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2825911 1162185 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The node, a hub for mineral nutrient distribution in graminaceous plants
ترجمه فارسی عنوان
گره، توپی برای توزیع مواد مغذی مواد معدنی در گیاهان زراعی است
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
چکیده انگلیسی


• Graminaceous plants have highly developed and organized vascular system in the nodes.
• Inter-vascular transfer in nodes largely contributes to mineral nutrient distribution.
• Four different strategies in nodes for different elements distribution are identified.

Mineral elements, including both essential and toxic elements, are delivered to different tissues after they are taken up from the roots, but the mechanism (or mechanisms) underlying the distribution remains poorly understood. In graminaceous plants, this distribution occurs in nodes, which have a complex, well-organized vascular system. A transfer of mineral elements between different vascular bundles is required, especially for preferential distribution to developing tissues that have low transpiration but high nutrient requirements. This intervascular transfer is mediated by various transporters localized at different cells in the node. In this opinion article, we propose four modes of distribution for different mineral elements: xylem-switch, phloem-tropic, phloem-kickback, and minimum-shift, based on specific molecular transport processes identified in the nodes mainly of rice (Oryza sativa). We also discuss the prospects for future studies on mineral nutrient distribution in the nodes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 19, Issue 9, September 2014, Pages 556–563
نویسندگان
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