in order to investigate the effect of plant growth promoting rhizobacteria (pgpr) along with zinc (zn) and manganese (mn), foliar spraying on the morphological parameters of basil (ocimum basilicum l.) an experiment was conducted in factorial based on a randomized complete block design with three replications in 2011. treatments were the pgpr inoculation with azotobacter and azospirillum (azb+a...

Owing to its cell form, growth behavior and habitat within grass roots, the first isolates of the later defined genus Herbaspirillum were initially thought to be a new Azospirillum species (Baldani et al., 1984). However, RNA-RNA hybridization experiments showed no close relatedness with Azospirillum spp. or Aquaspirillum itersonii (Falk et al., 1986). The first species of the newly defined gen...

This experiment was carried out to study the effect of humic acid and growth promoting bacteria on uptake of cadmium heavy metal by annual alfalfa (Medicago scutellata L.). The experiment was arranged in pot experiment conditions in Isfahan, Iran in 2011. A factorial design was used based on completely randomized block design with four replications. Experimental treatments were humic acid and g...

Attachment of soil bacteria to plant cells is supposedly the very early step required in plant-microbe interactions. Attachment also is an initial step for the formation of microbial biofilms on plant roots. For the rhizobia-legume symbiosis, various mechanisms and diverse surface molecules of both partners have been proposed to mediate in this process. The first phase of attachment is a weak, ...

This study evaluated the combined effect of foliar spray inoculation with plant growth-promoting bacteria (PGPB) and nitrogen doses on yield, development, nutritive value Megathyrsus maximus cv. BRS Zuri. The experimental design was randomized blocks four replications, repeated measures in time. Foliar two (Azospirillum brasilense Ab-V5 (CNPSo 2083) Ab-V6 2084) Pseudomonas fluorescens 2799)) 40...

In recent years soil bacteria of the genus Azospirillum found increasing biological and ecological interest because of their ability to microaerobically fix N 2 and to live in close association with plant roots, stimulating growth of nitrogenlimited plants [1-5]. The physiology of N 2 fixation, especially its repression by N H + , has been studied extensively [6-9]. The question, however, how N...

This review presents a critical and comprehensive documentation and analysis of the developments in agricultural, environmental, molecular, and physiological studies related to Azospirillum cells, and to Azospirillum interactions with plants, based solely on information published between 1997 and 2003. It was designed as an update of previous reviews (Bashan and Levanony 1990; Bashan and Holgui...

This study was designed to isolate and characterize Azospirillum strains from maize (Zea mays L.) grown under wellwatered and water stressed conditions and to evaluate the ability of bacteria to produce plant growth promoting hormones like Indole Acetic Acid (IAA), Gibberellic Acid (GA), trans-Zeatin riboside (tzr) and abscisic acid (ABA). A total of eight strains of Azospirillum were isolated ...