Journals / Journal of Cell and Molecular Biology / 2006 / Cilt: 5 - Sayı: 1

Bitki fungal hastalıklarına karşı saponinler

Saponins versus plant fungal pathogens

Pages
13–17
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Here we present a review about the two saponins that have been proved to have antimicrobial activity and have a role in plant defense.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The production of low-molecular-weight antimicrobial molecules within plants is one component of defense against pathogens.
📊
Key Findings & Data:Among them, preformed antimicrobial compounds (phytoanticipins) are the first biochemical barriers against pathogens.
💡
Conclusion & Impact:Here we present a review about the two saponins that have been proved to have antimicrobial activity and have a role in plant defense.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The production of low-molecular-weight antimicrobial molecules within plants is one component of defense against pathogens. Among them, preformed antimicrobial compounds (phytoanticipins) are the first biochemical barriers against pathogens. Saponins (a group of phytoanticipins) are present constitutively in plants and play important roles in plant defense. A variety of biological roles have been postulated for different saponins, involving allelopathic activity, defense against insects and pathogens. The mechanism of antifungal action of saponins is not well understood but it is believed that they complex with sterols in the cell membrane, leading to pore formation and consequent loss of membrane integrity. Saponins that have been studied in detail in relation to their potential role in plant defense against attack by phytopathogenic fungi are triterpenoid avenacins in oat roots and the steroidal glycoalkaloids a-tomatine in the leaves of tomato. Here we present a review about the two saponins that have been proved to have antimicrobial activity and have a role in plant defense.

Özet

Küçük moleküler ağırlığa sahip antimikrobiyal moleküller bitkilerin patojenlere karşı savunmasında önemli bir role sahiptir. Bunlar arasında önceden varolan (fitoantisipinler) moleküller, patojenlere karşı ilk bariyer olmalarına rağmen, çok fazla ilgi görmemişlerdir. Saponinler (bir fitoantisipin grubu) bitki dokusunda doğal olarak bulunurlar ve bitki savunmasında önemli bir role sahiptir. Saponinler için çok farklı biyolojik roller ortaya konulmuştur; bunlar arasında allelopatik aktivite, böcek ve patojenler karşı savunma sayılabilir. Saponinlerin antifungal aktivitelerinin mekanizması henüz tam olarak aydınlatılmamış olmasına karşın, hücre membranında bulunan sterollerle birleşerek, hücre membranınm delinmesine ve böylece membran bütünlüğünün bozulmasına sebep olduğu düşünülmektedir. Bitkide fitopatojenik funguslara karşı, savunmada potansiyel rollerinin detaylı çalışıldığı saponinler arasında en önemlileri yulaf köklerinde bulunan triterpenoid avenasinler ve domates yapraklarında bulunan a-tomatin'dir. Bu makale antimikrobiyal aktiviteye ve bitki savunmasında bir role sahip bu iki saponin hakkında derleme bilgileri vermektedir.

🔖

Cite This Article

TÜRK, M. F. (2022). Bitki fungal hastalıklarına karşı saponinler. Journal of Cell and Molecular Biology, Cilt: 5 - Sayı: 1, 13–17. https://ajindex.com/articles/560664

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (8)

  1. Armah CN, Mackie AR, Roy C, Price K, Osbourn AE, Bawyer P and Ladha S. The membrane permeabilising effect of avenacin A-l involves the reorganisation of bilayer cholesterol. Biophys J. 76: 281-290, 1999. Bengham AD and Home RW. Action of saponin on biological cell membranes. Nature 196: 952-953, 1962. Courtney WH and Lambeth VN. Glycoalkaloid content of mature fruit of Lycopersicon species. Hort Science. 13: 9-25, 1977. Crombie WM and Crombie L. Distribution of Avenacins A-1, A-2, B-l and B-2 in oat roots: Their fungicidal activity towards take-all disease. Phytochemistry. 25(9): 2069-2073, 1986. Crombie WM and Crombie L. Pathogenicity of the take-all fungus to oats: its relationship to the concentration and detoxification of the four avenacins. Phytochemistry. 25: 2075-2083, 1986.
  2. Crombie WM, Crombie L, Green JB and Lucas JA. Pathogenicity of the take-all fungus to oats; its relationship to the concentration and detoxification of - the four avenacins. Phytochemistry. 25: 20-75-2083, 1986. Dow JM and Callow JA. A possible role for a-tomatine in the varietal-specific resistance of tomato to Cladosporium fulvum. Phytopathology. 92: 211-216, 1978.
  3. Haralampidis K, Trojanowska M, Osbourn AE. Biosynthesis of thriterpenoid saponins in plants. Adv Biochem Eng Biöthecnology. 75:31-49, 2001. Hostettmann KA and Marston A. Saponins. Chemistry and pharmacology of natural products. Cambridge Universty Press,
  4. Cambridge, United Kingdom, 1995.
  5. Mert-Türk F, Egesel CO and Gül MK. Avenacin A-l content of some local oat genotypes and in vitro effect of avenacins on several soil-borne fungal pathogens of cereals. TurkJ Agric For. 29: 157-164, 2005. Morrissey JP and AE Osbourn. Fungal resistance to plant antibiotics as a mechanism of pathogenesis. Microbiol MolBiolRev. 63:708-724, 1999.
  6. Osbourn AE, Clarke BR, Lunness P, Scott PR and Daniels MJ. An oat species lacking avenacin is susceptible to infection by Gaeumannomyces graminis var. tritici. Physiol Mol P Pathol. 45:457-467, 1994. Osbourn AE. Preformed antimicrobial compounds and plant defense againts fungal attack. Plant Cell. 8: 1821-1831,1996. Osbourn AE. Saponins in cereals. Phytochemistry. 62:1-4, 2003.
  7. Papadopoulou K, Melton RE, Leggett M, Daniels MJ and Osbourn AE. Compromised disease resistance in saponin-deficient plants. P Natl Acad Sci USA. 96 (22): 12923-12928, 1999.
  8. Price KR, Johnson IT and Fenwick GR. The chemistry and biological significance of saponins in food and feeding. stufs. Crit Rev Food Sci Nutr. 26: 27