Özet:

One of the most important benefits of using plant derived tools in fighting against plant bacteria and fungi attack, is their environmentally safety, much higher compared to synthetic products, simultaneously with offering important therapeutic benefits. Garlic has an increasing role on unconventional phytopathogens fight, especially within integrated pest management systems. Even its preventive and curative effects on both human and vegetables is well known from ancient times, the scientific basis of using garlic as nutraceutic with valuable action on human health and/or alternative agent against plant pathogens, was scientifically settled only in last decades. The present work attempts to emphasize a picture concerning the garlic aliin component, which confer the plant antibacterial and antifungicide properties. Our study strengthens the previous assessments concerning synergistically action of main organo-sulphur compounds from Allium sativum L. resulting in antifungicide and antibacterial effects. The intensity and efficacy of those effects depends at large extent on garlic extracts nature and their processing technology. Among updated actions of garlic different extracts we mention: antibacterial properties against both Gram positive and Gram negative bacteria, fight against yeast-like fungi and other fungi varieties, in control of particular plant diseases, control of warms, aphids, Colorado beetles, mosquitoes. The present available knowledge concerning the aliin action against a large spectrum of bacteria, fungi, particular plant diseases, and pests will need a wider approach that involves the development of molecular biology tools, in order to identify the complex mechanisms of interaction between aliin and plant pathogens.

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