Volume 4 Issue VIS Article 4

Analysis of phenolic compounds for determination of cambium differentiation and tracheal elements in olive graft combinations


Mahmoud Azimi1; Mücahit Taha Özkaya1,*; Hatice Cölgecen2; Hatice Nurhan Büyükkartal3;


1Ankara University, Faculty of Agriculture, Department of Horticulture, Diskapi Ankara, Turkey
2Bülent Ecevit University, Faculty of Arts and Science, Department of Biology, Incivez, Zonguldak, Turkey
3Ankara University, Faculty of Science, Department of Biology, Tandoan, Ankara, Turkey



Keywords: Gemlik, Olive, Parancymatic cell, Sclerenchyma tissue and Histology

Page No: 714 - 720


Received - June 09, 2016; Revision - August 11, 2016; Accepted - December 26, 2016
Available Online - December 29, 2016



Abstract


The aim of this investigation was to evaluate the effect of phenolic compounds during differentiation of cambium and tracheal elements in olive cultivars 'Ayvalik', 'Domat', 'Gemlik', 'Memecik', 'Nizip Yaglik' and 'Sari Ulak'. These cultivars were grafted onto one year-old cv. 'Gemlik' rootstock. This rootstock has been propagated by cuttings. According to the results of histological studies for two years; new cambium cells were initiated in first three months while the formation of vascular bundles and sclerenchyma cells were initiated in six months. Large numbers of undifferentiated parancymatic cells were also determined in both side grafts of the cultivars 'Ayvalik', 'Domat' and 'Nizip Yaglik' after 3, 6and 12 months of grafting. Further, High levels of 4 hydroxyphenylacetic acid, vanillic and ferulic acids content were determined in the scion of the cultivars Ayvalik, Nizip Yalik and Domat. As a result, during recovery of graft zone, development of new cambium tissues, vascular connections and sclerenchyma tissues occurred imperfectly in 'Ayvalik', 'Domat' and 'Nizip Yaglik' cultivars and graft zones of these combinations were found weak. Moreover level of 4Hydroxyphenylacetic acid and Ferulic acidphenolic compounds had high concentration in scions of 'Ayvalik' and 'Domat', respectively. These results illustrated existence of problem in differentiation of cambium and vascular systems in graft interface of 'Ayvalik' and 'Domat' cultivars.

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