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dc.contributor.authorCag, Serap
dc.contributor.authorGoeren, Nihal
dc.date.accessioned2021-03-06T08:37:53Z
dc.date.available2021-03-06T08:37:53Z
dc.identifier.citationGoeren N., Cag S., "The effect of indole-3-acetic acid and benzyladenine on sequential leaf senescence on Helianthus Annuus L. seedlings", BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT, cilt.21, ss.322-327, 2007
dc.identifier.issn1310-2818
dc.identifier.othervv_1032021
dc.identifier.otherav_e1dee28d-fcdd-490a-8c7f-8c86baa68e24
dc.identifier.urihttp://hdl.handle.net/20.500.12627/148701
dc.identifier.urihttps://doi.org/10.1080/13102818.2007.10817467
dc.identifier.urihttps://avesis.istanbul.edu.tr/api/publication/e1dee28d-fcdd-490a-8c7f-8c86baa68e24/file
dc.description.abstractThe effect of IAA and BA on the mechanism of senescence which occurs in the cotyledons of Helianthus annuus L. seedlings showing epigenic germination has been investigated. In this study 0, 01 mu M and 10 mu M IAA solutions were sprayed to the leaves and BA solutions with the same concentrations - to the cotyledons of 16 days-old seedlings. We have determined chlorophyll content, protein amount, peroxidase activity and the changes in the membrane permeability in the cotyledons of the treated and control seedlings. Compared to the control cotyledons IAA in the concentrations of 10 mu M and 0,01 mu M caused a breakdown of chlorophyll at the ratio of 64% and 54%, respectively. Soluble protein levels in the IAA at 10,mu M treatment decreased in the ratio of 12%. IAA treatments with 10 mu M and 0, 01,mu M stimulated POD activity with about 11 and 8 times, respectively. On the other hand, it has been observated that 10 mu M and 0,01 mu M BA treatment retarted senescence, whereas 0,01 mu M BA and 0,01 mu M IAA when were applied together enhanced senescence. It has been discussed that IAA which is known as an allosteric activators Of cytokinin oxidase stimulates the cytokinin oxidations so it increases senescence that occurs in the cotyledons. In this research, according to the results it has been thought that the senescence signal may be a substance in the nature of IAA.
dc.language.isoeng
dc.subjectBiyoteknoloji
dc.subjectYaşam Bilimleri (LIFE)
dc.subjectTemel Bilimler
dc.subjectYaşam Bilimleri
dc.subjectBİYOTEKNOLOJİ VE UYGULAMALI MİKROBİYOLOJİ
dc.subjectMikrobiyoloji
dc.titleThe effect of indole-3-acetic acid and benzyladenine on sequential leaf senescence on Helianthus Annuus L. seedlings
dc.typeMakale
dc.relation.journalBIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT
dc.contributor.departmentİstanbul Üniversitesi , Fen Fakültesi , Biyoloji Bölümü
dc.identifier.volume21
dc.identifier.startpage322
dc.identifier.endpage327
dc.contributor.firstauthorID1788442


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