Abstract
Plant diseases generate substantial threat to agriculture. Bacterial species with the ability to prevent these diseases are expected to have promises as natural alternative to chemical control measures. The bacteria of the genus Serratiahave been reported to have bothrhizospheric and endophytic association with protective effect to various plants. Among the various species, S. marcescens, S. plymuthica, S. rubidaea and S. liquefaciens have been extensively studied for their anti-phytopathogenic mechanisms. These involve production of antibiotics such as prodiogisin, pyrrolnitrin and oomycidin and also the production of lytic enzymes such as chitinases. In addition to this, they are also known for their ability for the induction of induced systemic resistance, which indirectly make the plant competent towards various pathogens. Serratia spp. are also known for their accumulation of other plant beneficial features like indole-3-acetic acid (IAA) production, 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity and phosphate solubilization. Hence the multi-beneficial mechanisms of Serratia spp. towards plants is highly impressive and is expected to have increasing agricultural applications. Current review is designed to provide insight into plant beneficial promises of Serratia spp.
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