Effects of 24-Epibrassinolide on Growth and Some Antioxidant Enzymes of Cotton (Gossypium hirsutum L.) Cultivars under NaCl Stress

Journal of Applied Biological Sciences

Serdal TÜRKEKUL¹  Hakan ALTUNLU¹  Betül BÜRÜN3 İbrahim YOKA޹  Yonca SURGUN¹ 

关键词: 24-Epibrassinolide;    cotton;    NaCl;    germination;    growth;    pigment content;    enzyme activity;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Thepresentstudywasconductedtoinvestigatetheanti-stresseffectsof24-Epibrassinolide(EBL),anactivebrassinosteroid,incottoncultivarsagainsttheNaClstress.NinecottoncultivarsweretestedfortheirgerminationresponsestovaryingNaClconcentrations.Accordingtogerminationtestresult,twotolerant(Nazilli84-SandCarmen)andtwosensitive(Sahin2000andBeyazAltin119)cultivarswereselectedfortheexperiments.Seedsoffourcultivarsweresoakedin3μMEBLfor24handseedlingswereirrigatedwithsolutioncontainingthevariousconcentrationofNaCl(0,50,100and150mM).Germination,growth(freshweight,dryweight,shootandrootlength)andpigmentcontent(chlorophylla,chlorophyllbandcarotenoid)reducedundersalinitystresswhereasthetreatmentwithEBLalleviatedtheinhibitoryeffectsofsaltstress.UnderhighNaClstress,superoxidedismutase(SOD),guaiacolperoxidase(GPX)andprolinecontentsincreasedin21-old-daysseedlings;howeverEBLfurtherincreasedtheactivityofantioxidantenzymesandprolinecontentincottoncultivars.

【 授权许可】

Unknown