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Thread: Calcium and Germination in the Quran

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    Senior Member Hannahh's Avatar
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    Oct 2005

    Default Calcium and Germination in the Quran

    [6.67] For every prophecy is a term, and you will come to know (it).

    [6.95] Surely Allah causes the grain and the stone to germinate; He brings forth the living from the dead and He is the bringer forth of the dead from the living; that is Allah! how are you then turned away.
    verb: germinate; 3rd person present: germinates; past tense: germinated; past participle: germinated; gerund or present participle: germinating1. (of a seed or spore) begin to grow and put out shoots after a period of dormancy.

    Pollen tubes grow rapidly by very fast rates and reach extended lengths to bring about fertilization during plant reproduction. The pollen tube grows exclusively at its tip. Fundamental for such local, tip-focused growth are the presence of internal gradients and transmembrane fluxes of ions. Consequently, vegetative pollen tube cells are an excellent single cell model system to investigate cell biological processes of vesicle transport, cytoskeleton reorganization and regulation of ion transport. The second messenger Ca(2+) has emerged as a central and crucial modulator that not only regulates but also integrates the coordination each of these processes. In this review we reflect on recent advances in our understanding of the mechanisms of Ca(2+) function in pollen tube growth, focusing on its role in basic cellular processes such as control of cell growth, vesicular transport and intracellular signaling by localized gradients of second messengers. In particular we discuss new insights into the identity and role of Ca(2+) conductive ion channels and present experimental addressable hypotheses about their regulation. This article is part of a Special Issue entitled:12th European Symposium on Calcium.

    [6.103] Vision comprehends Him not, and He comprehends (all) vision; and He is the Knower of subtleties, the Aware.
    Last edited by Hannahh; 10th February 2014 at 14:02.

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