02fdd68lv
Cholerny Spammer
Joined: 17 Nov 2010
Posts: 763
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Location: England
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 Posted: Mon 10:49, 17 Jan 2011 Post subject: mulberry sale Plasma membrane during senescence of |
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Plasma membrane during senescence of soybean leaves from the phosphorylation state of protein kinase and catalytic activity in
ce (Lin-dooandNooden1976,[link widoczny dla zalogowanych], 1978). Ithaeensuggestedthatmodulationofcytokininfluxintotheleafappearstobeasensitivesignalingnaechanismcontrollingthesenescenceofleavesandotherpartsofsoybean (NoodenandLe-tham1993). Theeffectofexogenous6-BA, anartificialeytokinin, indelayingthedeclineinlevelofchlorophyll, RNAandproteinaswellastheenzymesRNaseandehlorophyllasedur-ingsoybeanleafsenescencehaeenreportedmanyyearsago (Phillipseta1.1969). How-ever, ver) 'tittleinfommtionisavailableonthemolecularmechanismoftheactionofthisphy-tohormone. Althoughmassiveresearchhaeenconductedonsoybeanleafsenescence,[link widoczny dla zalogowanych], theroleofreversibleproteinphosphorylatiorr / dephosphorylationinithasnotbeenexaminedthoroughly. Wehavefoundthatsenescence-in-ducingtreatment (ST) causedgreatdecreaseinthedegreeofinvitrocalcium - dependentpro · · teinphosphorylationofplasnmmembranefrae-tionfrom14 - day - oldsoybeanprimar?,[link widoczny dla zalogowanych], Leafbuthadlittleeffectontheactivityofealeimn. . inde - pendentproteinkinasesinthesamesample (Wangetat.1998). Inthispaperwewillre-porttheST-inducedchangesinautophosphory-lationandcatalyticactivitiesofproteinkinaseswhichareassociatedwi the theplasmamen-branesandtheretardingeffectof6. BAontheseprocesses. 1MaterialsandMethods1.1PlantmaterialsandtreatmentsSoybean (GlycirveDTAT,[link widoczny dla zalogowanych], rL.) Plantsweregrowninagrowthchamberundera16hphoto-period,[link widoczny dla zalogowanych], withaday/nighttemperatureregimeof25 ℃ / 22 ℃ respectively. Thelightintensitvatplantlevelwas100LLm01ms. Fortreatments. intaet14day-oldseed-lingswerecollectedandtheirprinmryleavesweredippedin0.05% () Tween. 8Oso] u-ti0neitherwi
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