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green1223

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Hilhorst (1990a, b) proposed a model that integrated the
effects of all three factors. The model suggests that dormancy
reduction and the onset of germination are regulated by
a plasma membrane-bound protein, and that processes
leading to germination can occur when this protein is bound
to the active form of phytochrome (Pfr). The model proposes
that the binding of the protein to Pfr is enhanced by
temperature-induced changes in membrane fluidity that
result in the exposure of the protein to NO-3, and that this
exposure increases the affinity of the protein for phytochrome .
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[ Last edited by green1223 on 2009-7-8 at 15:01 ]

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cloisonne

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green1223(½ð±Ò+15,VIP+0):ÄãºÜϸÐÄ£¡Ð»Ð» 7-8 16:10
Hilhorst(1990a, b)Ìá³öÒ»¸öÄ£ÐÍ×ÛºÏÁËËùÓÐÈý¸öÒòËØµÄÓ°Ïì¡£¸ÃÄ£ÐͱíÃ÷£¬ÐÝÃߵļõÉٺͿªÊ¼ÃÈÑÀÊܵ½Ä¤µ°°×µÄµ÷½Ú£¬¶øÇÒÔÚÕâ¸ö¹ý³ÌÖе±(Ĥ)µ°°×½áºÏµ½»îÔ¾µÄ¹âÃôÉ«ËØ(Pfr)ʱ»áÒý·¢ÃÈÑ¿¡£¸ÃÄ£ÐÍÌá³öµÄ(Ĥ)µ°°×ºÍPfrµÄ½áºÏÌá¸ßÁËζȱ仯ÒýÆðµÄĤµÄÁ÷¶¯ÐÔµ¼ÖÂ(Ĥ)µ°°×±©Â¶ÔÚNO-3ÖУ¬Òò´ËÕâÖÖ±©Â¶Ôö¼ÓÁË(Ĥ)µ°°×ºÍ¹âÃôÉ«ËØµÄ½áºÏÁ¦¡£

[ Last edited by cloisonne on 2009-7-8 at 15:27 ]
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