Bitki Büyüme Engelleyici ve Geciktiricilerin Etki Mekanizmaları

Year 1997, Volume: 10 Issue: 1, 237 - 248, 01.12.1997

Lami Kaynak Kezban Memiş

Abstract

Bugün bitki büyüme düzenleyicileri' (BBD)'nin birçoğunun etki mekanizmasının bilinmemesi nedeniyle bitkideki rolleri tam olarak anlaşılmış değildir.
Araştırıcılar son yıllarda bulunan farklı tipteki BBD'ni dikkate alarak etki şeklinde daha detaylı bir görüş ortaya koymaya çalışmışlardır. Yapılan çalışmalar etkinin protein sentezi reaksiyonlarıyla ilişkili olduğunu göstermiştir. Protein sentezi nukleustaki DNA'dan oluşturulan RNA oluşumuyla ilişkilidir. Bu çalışmalar, gen faaliyeti ve enzim sentezi faaliyetlerine dayanarak hücre biyolojisi düzeyinde hormon etkilerini açıklamaktadır.
Bu derlemede, büyüme engelleyici ve geciktiricilerinin etki şekilleri günümüze kadar yapılan çalışmalar ışığında açıklanmaya çalışılmıştır.

Keywords

Büyüme Engelleyici, Büyüme Geciktiricileri, Etki Mekanizmaları

The Mechanism of the Plant Growth Inhibitors and Reterdants

Abstract

Since the mechanism of the plant growth regulators (PGR) is unknown, their roles have not been understood in plant.
By taking into consideration the different types of the PGR, recently found, researchers try to put forward a detailed explanation of their mechanism. Experiments carried out by different researchers showed that the effect was related to protein synthesis reactions. As it is known, protein synthesis is related with RNA formation from DNA present in nucleus. These researches explained that hormon influence was based on gen activities and enzyme synthesis activities at celi biology level.
In this review, mechanism of the plant growth inhibitors and retardants was tried to be explained in the shed of the experiments conducted so far.

Keywords

Growth Inhibitors, Growth Reterdants, Mechanism of Action

References

• 1. ADDİCOTT F T, Abscission and Plant Regulators. Plant Regulator in Agriculture. Michigan State Colloge. John Willey & Sons, Inc,, New York, Chapman & Hall, Limited, London, 99-105, 1968.
• 2 BLOUET A., FABERT D.P., ARİSSİAN M., GUCKERT A., Role of Imazaquin in AC4447: Effect on Root and Flag Leaves of Winter Wheat. Brighton Crop Protection Conference. Bringhton, England, 3, 973-986, 1991.
• 3. BROCK T.G, KAUFMAN P.B , Growth Regulators: An Account of Hormones and Growth Regulation. Plant Physiology Cornell University. Ithaca, New York, 279 -288. 1991.
• 4. DAVIES P.J., Plant Hormones and Their Role in Plant Growth and Development. Cornell Univ., Ithaca, New York, 124-530, 1987.
• 5. HENDERSON E J.C., MAURER W., CORNES D.W., RYAN P.J., Beneficial Effects of the Plant Growth Regulator CGA 163'93 5 in Oilseed Rape Under UK Conditions. Brington Crop Protection Conference, Brighton, England, 1,203-211, 1991.
• 6. KALDEWEY H., VARDAR Y., Hormonal Regulation in Plant Growth and Development . Proceedings of the Advanced Study Institute, Izmir, Turkey, 1971.
• 7. KAYS S.J., Postharvest Physiology of Perishable Plant Products, Van Nostrand Reinhold, New York, 532p., 1991.
• 8 LEOPOLD AC, KRİEDEMANN P.E., Plant Growth and Development Me Graw-Hill Book Company, New York, 1975.
• 9. MANSFIELD T.A., Hormones as Regulators of Water Balance: Plant Hormones and Their Role in Plant Growth and Development. Cornell Univ., Ithaca, New York, 411-417, 1987.
• 10. M1YAZAWA T., YANAGISAWA K., SHIGEMATSU S, MOTOJIMA K., Prohexadione - Calcium, a New Plant Growth Regulator for Cereals and Ornamental Plants. Brighton Crop Protection Conference. Brighton, England, 3, 967-972, 1991.
• 11. MOHR H„ SCHOPFER P, Plant Physiology. Springer-Verlag, Berlin, Heidelberg, Germany, 278-398, 1995.
• 12. NİCKELL L.G., Controlling Biological Behavior of Plant with Synthetic Plant Growth Regulating Chemicals. Plant Growth Substances. Beltsville Agricultural Research Center. Beltsville, England, 263-277, 1973.
• 13. PİLET P E., ABA Effects on Growth in Relation to Auxin, RNA and Ultrastructure. Hormonal Regulation in Plant Growth and Development. Proc. Adv. Study Inst.,İzmir, Turkey, 297-315, 1971.
• 14. SZWEYKOWSKA A M., Hormonal Control of Protein Synthesis in Plants. Hormonal Regulation of Plant Growth and Development. Martinus Nijhoff Publishers, Boston, 1-31, 1987.
• 15. ZEEVAART J.A.D, ROCK C D , FANTAUZZO F., HEATH T.G, GAGE D.A., Metabolism of ABA and Its Physiological Implications. Environmental Plant Biology. Institute of Environmental and Biological Sciences, Division of Biological Sciences, University of Lancaster, UK, 345-353, 1992.