Azospirillum lipoferum

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Introduction

Azospirillum lipoferum, is a gram positive a-proteobacteria extensively studied due to its properties to influence plant growth, due to this symbiotic characteristic this bacteria is qualified as a Growth-Promoting Rhizobacteria (PGPR). The organism was first described by Martinus Beijerinck who named it Spirillum lipoferum , in 1925. Later, the classification was revised by Tarrand et al. who renamed it Azospirillum lipoferum which means "small, fat bearing, spiral".

Classification

Transmission electron micrograph of Azospirillum lipoferum 4B grown in liquid culture. (F, polar flagellum; bar, 1 µm).Source: Alexandre et al. 1999, Applied Environmental Microbiology, 65, 7401.

Domain: Bacteria
Phylum: Proteobacteria
Class: Alphaproteobacteria
Order: Rhodospirillales
Family: Rhodospirillaceae
Genus: Azospirillum
Species: Azospirillum lipoferum

Metabolism

Ecology

Colonization of rice root by A. lipoferum 4B labelled with EGFP, analyzed by confocal laser scanning microscopy. Source: UMR-CNRS 5557 Centre d’Ecologie Microbienne.

Reference