HOST PLANT RESISTANCE-MECHANISMS TO INSECTS

Abstract

Resistance formation is evoked by the host and plant pathogen when they do concominantly present at the same place, trigering biochemical pathways and showing itself with precursor of salicylic acid synthesis and expression of its binding proteins in planta. Whereas this case shows some differences in interaction, realizing between pest and host. In addition some interactions occuring between pest and host result in signal transduction, jasmonic acid-like compounds are the main factors conferring transduction of signal between two channels therefore, some cases sourcing some properties of host leads to antibiosis, antixenosis that are trigerring factors for forming resistance. It is known that an antagonism (cross-talk) which is between signal transporters and with differantiation in signal transduction occurring between pathogen –host and pest – host changes signal communication in resistance as well. This review gives some updated and summarised information on pest-resistance to reader in the shed of these mentioned knowledge.

Keywords

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BİTKİLERDE BÖCEKLERE DAYANIKLILIK MEKANİZMALARI

Abstract

Bitkilerde dayanıklılık oluşumu konukçu ile patojenin bir araya gelmesi neticesinde tetiklenen
biyokimyasal tepkimeler sonucu ortaya çıkmakta ve bu olayların salisilik asit ve buna bağlı proteinlerin
ifadesiyle kendini gösterdiği bilinmektedir. Böceklerde dayanıklılığın böceğin bulunduğu konukçudan
kaynaklanan belirli özelliklerle ortaya çıkan antibiosis ve tercih edilmeme durumlarına ilaveten zararlı ile
bitki arasındaki bir takım interaksiyonlar sonucu sinyal iletişimlerinin olması ve bu sinyal iletişimlerinin
jasmonik asit ve benzeri komponentlerle iki unsur arasında taşınabilmesi dayanıklılığın oluşumunda
tetikleyici faktördür. Dayanıklılıkta patojen-konukçu ve zararlı- konukçu arasında iletişimin farklı
olmasıyla sinyal iletişiminin de farklı olduğu ve hatta sinyal ileticiler arasında bir çapraz antagonizm
(cross-talk) olduğu bilinmektedir. Bu veriler ışığında derleme okuyucuya bitkilerde böceklere karşı
oluşturan dayanıklılık konusunda özetleyici güncel bilgiler vermektedir.

Keywords

• Dayanıklılık, böcek, interaksiyon, uyarıcı

References

1. Baysal Ö., Y.Z. Gürsoy, A. Duru and H. Örnek, 2005. Induction of oxidants in tomato leaves treated with DL-β-Amino butyric acid Clavibacter michiganensis European Journal of Plant Pathology. 4:361-369. infected with ssp. michiganensis
2. Baysal Ö., Y. Z. Gürsoy, H. Örnek, B. Çetinel and J. A. Teixeira da Silva,. 2007. Enhanced systemic resistance to bacterial speck disease caused by Pseudomonas syringae pv. tomato by dl-β-aminobutyric acid under salt stress Physiologia Plantarum 129:493–506.
3. Broadway R and S. Duffey, 1986. Plant proteinase inhibitors: mechanism of action and effect on the growth and digestive physiology of larva1 Heliothis zea and Spodoptera exigua. J Insect Physiol 32 827-833.
4. Doss, R. P., R. Luthi and B. F. Hrutford, 1980. Germacrone, a sesquiterpene repellent to obscure root weevil from Rhododendron edgeworthii. Phytochemistry 19: 2379- 2380.
5. Farmer E. E and C. A. Ryan, 1992 Octadecanoid precursors of jasmonic acid activate the synthesis of wound-inducible proteinase inhibitors. Plant Cell 4: 129- 134.
6. Halitschke R., U. Schittko, G. Pohnert, W. Boland Molecular specialist herbivore (Lepidoptera, Sphingidae) and its natural host Nicotiana attenuata. III. Fatty acid- amino acid conjugates in herbivore oral secretions are necessary and sufficient for herbivore-specific plant responses. Plant. Physiol. 125: 711 -17 2001. the between Manduca sexta
7. Kansu, İ. A., 1965. Böcek Ökolojisi ve Epidemiyolojisi. Ankara Üniversitesi Ziraat Fakültesi Yayınları: 242, Ders Kitabı: 81, 134 s.
8. Kessler, A. and T. Baldwin, 2002. Plant responses to insect hervivory: The emerging molecular analysis. Annual Review of Plant Biology; ; 53,:229-328

9. McGurl, B., G. Pearce, M. Orozco-Cardenas and C. A. Ryan, 1992. Structure, expression, and antisense inhibition of the systemin precursor gene. Science 255, 1570-1573.
10. Painter, R. H., 1951. Insect Resistance in Crop Plants. New York, MacMillan. 520 s.
11. Panda, N. and Khush, G. S., 1995. Host plant resistance to insects. CAB international Wallingford, Oxon. OX 10 8DE United Kingdom. pp 431.
12. Pehlivan, E., 1978. Kültür Bitkilerinin Zararlı Böceklere Prensipleri. Türk Bit. Kor. Derg. 2 (1): 43-54. Dayanıklılığının
13. Ryan, C. A., 2000. The systemin signaling pathway: differential activation of plant defensivegenes. Biochem Biophys. Acta. 1477, 112-121
14. Schaller, F., 2001. Enzymes of the biosynthesis of molecules. Journal of Experimental Botany 52, 11-23. signalling
15. Smith C. M.,1989. Plant Resistance to Insects. A Publication.Moscow.286 s.
16. Stintzi, A., H. Weber, P. Reymond, J. Browse, E. E. Farmer, 2001. Plantdefense in the absence of jasmonic acid: The role of cyclopentenones. National Academy of Sciences of the United States of America 98, 12837- 12842 ofthe
17. Vick, B. A., D. C. Zimmerman, , 1984. Biosynthesis of jasmonic acid by several plant species. Plant Physiol. 75, 458–461.
18. Walling L. L, 2000. The myriad plant responses to herbivores. J. Plant. Growth Reg. 19, 195-216.