Polysaccharide production by Azospirillumstrains was indicated by fluorescence on growth media containing calcofluor. Mutants showing decreased and. The interactions between Azospirillum lipoferum, Azotobacter chroococcum and Rhizobium spp. were assessed by the growth pattern and mineral concentration . Efecto de Azospirillum lipoferum y fertilización nitrogenada en el contenido de clorofila, absorción de nutrientes y propiedades biométricas de Zea mays L.

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Information on morphological and physiological properties Morphology and physiology.


Abstract Integrated nutrient management is a major agronomic practice which brings together all methods to support plants nutritional requirement. Effect of seeding rate and nitrogen fertilizer on wheat grain yield in marginal areas of eastern Kenya.

Information on isolation source, the sampling and environmental conditions Isolation, sampling and environmental information. In a pot experiment, phosphorus mobilization in wheat Triticum aestivum L.

Measurements and Statistical Analysis After 72 h in the presence of the deuterated GA conjugates, the length of the first internode was measured. Identification of gibberellins A 1A 3and iso-A 3 in cultures of Azospirillum lipoferum.

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Takahashi N, Kobayashi Azosplrillum. The efficacy of strains of Pseudomonas fluorescens, Bacillus megaterium and Azospirillum spp. Inoculation with Azospirillum changes root growth or morphology, resulting in better water and nutrient uptake, and consequently plant growth and yield Lin et al. Besides, Azospirillum brasilense inoculation increased growth variables of maize El-Kholy et al.


Biosafety classification is based on U. The authors highly acknowledge Islamic Azad University, Tabriz Branch-Iran, for their fields and laboratories support. Inoculated seeds were planted directly in the soil.

Hydrolisis of 17,[ 2 H 2 ]-gibberellin A 20 -glucoside and 17,[ 2 H 2 ]-gibberellin A 20 -glucosyl esther by Azospirillum lipoferum cultured in nitrogen-free biotin-based chemically defined medium. Lucangeli C, Bottini R.

A taxonomic study of the Spirillum lipoferum group, with descriptions of a new genus, Azospirillum gen. Please review our privacy policy. Azospirillum inoculation significantly affected the variables Table 1. The following bacteria were used: Plant growth regulators and amino acids released by Azospirillum sp.

Organ-specific gibberellins in rice: Effects of Azospirillum spp. This means that A.

Azospirillum – Wikipedia

Cookies used for the essential operation of the site have already been set. Bacterial Counts in Stems and Roots Bacterial counts were made for both shoots and roots of control and treated rice seedlings using plates of NFb agar. The cellular pellet was washed twice with 0. Azospirillum lipoferum and nitrogen fertilization effect on chlorophyll content, nutrients uptake and biometric properties of Zea mays L. The finding that only [17, 2 H 2 ]GA 1 was a metabolic product of [17, 2 H 2 ]GA 20 the deconjugated aglycone strongly implies that GA 1 and GA 3 have different precursors in the route of synthesis in Azospirillum spp.


This confirms earlier work by Piccoli et al.

Metabolite utilization Metabolite Utilization activity Kind of utilization tested [Ref.: Availability in culture collections Strain availability. The dx mutant was much more efficient than the dy mutant in utilizing the azospieillum conjugates of [17,17 2 H 2 ]GA 20 for sheath elongation growth. Phosphorus absorption in barley Hordeum vulgare L. They suggest that azospirlilum and improving the activity of this resource is required for sustained soil and crop management.

Physiology, Biochemistry and Molecular Biology. Find articles by Patricia Piccoli. Author information Article notes Copyright and License information Disclaimer.

lipoferkm Then after again washing with sterile distilled water, five seeds were sown in glass beakers containing 2 mL of agar 0. Endophytic Bacteria Endophytic presence of the bacteria in roots and stems of inoculated plants was shown for both cultivars of all experiments summarized in Table III.

Microbial producers of plant growth stimulators and their practical use: