NDLI: Dynamics and partitioning of the ionome in seeds and germinating seedlings of winter oilseed rape

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Dynamics and partitioning of the ionome in seeds and germinating seedlings of winter oilseed rape

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Metallomics Vol - 5 Issue - 8

Metallomics Vol - 5 Issue - 7

Metallomics Vol - 5 Issue - 6

Metallomics Vol - 5 Issue - 5

Metallomics Vol - 5 Issue - 4

Metallomics Vol - 5 Issue - 3

Metallomics Vol - 5 Issue - 2

Dynamics and partitioning of the ionome in seeds and germinating seedlings of winter oilseed rape

Content Provider	Royal Society of Chemistry (RSC)
Author	Wirén, Nicolaus Eggert, Kai
Copyright Year	2013
Abstract	Germination and seedling establishment are among the most critical phases in the development of plants, and seed vigour has become an important trait for the selection of robust crop cultivars. Little is known about the potentially limiting role of mineral nutrients in early metabolic and developmental processes during germination. Therefore, we assessed the ionome and relative distribution of mineral elements in different seed and seedling tissues of oilseed rape (Brassica napus L.) and monitored the internal allocation of nutrients during germination. In seeds, cotyledons harboured the main pool of K, P, S, Mg, Fe, Mn and Zn, whereas the seed coat contained most of the Ca, Na, B, Cu and Mo. Although the early root and hypocotyl tissue expanded first, concentrations of most elements were initially low. Re-allocation of elements to the root/hypocotyl tissue from other pools set in two days after seed imbibition and was most rapid for K. Relative to the critical deficiency levels of vegetative tissues, seed tissues were particularly low in B, K and Fe. Further analyses of the ionome of seeds and seedlings, grouped according to their germination efficiency, indicated that in particular low S, Mg and Ca coincided with germination failure. This study documents highly dynamic changes in the ionome of seed and seedling tissues and provides evidence for potentially limiting elements during early germination and seedling establishment in rapeseed.
Starting Page	1316
Ending Page	1325
Page Count	10
File Format	HTM / HTML PDF
ISSN	17565901
Volume Number	5
Issue Number	9
Journal	Metallomics
DOI	10.1039/c3mt00109a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Mineral Cu Brassica Hypocotyl Rapeseed Germination Imbibition
Content Type	Text
Resource Type	Article
Subject	Chemistry Medicine Metals and Alloys Biochemistry Biomaterials Biophysics

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Plant regeneration from hypocotyl protoplasts of winter oilseed rape (Brassica napus L.)

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