Cultural conditions affecting Azospirillum brasilense cell aggregation and adsorption to maize roots

Eli Zaady; Yaacov Okon

doi:10.1016/0038-0717(90)90036-Y

Cultural conditions affecting Azospirillum brasilense cell aggregation and adsorption to maize roots

Eli Zaady^*, Yaacov Okon

^*Corresponding author for this work

Department of Plant Pathology and Microbiology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Sugars. EDTA and trypsin were tested for their effect in preventing aggregation of Azospirillum brasilense Cd cell suspension grown on malate as a C-source. d-Fructose (25-30 mM) strongly inhibited cell aggregation at various pH levels (5.0-8.4). Treatment of malate-grown cells with 20 mM d-fructose for 7.5 min. or with maize root extracts, significantly promoted the subsequent adsorption of Azospirillum cells to maize roots. No enhancement of adsorption could be observed when roots had been treated with d-fructose. The highest cell adsorption to roots was obtained with Azospirillum grown on d-fructose as C-source in combination with cells that had been exposed to root extract.

Original language	English
Pages (from-to)	1103-1107
Number of pages	5
Journal	Soil Biology and Biochemistry
Volume	22
Issue number	8
DOIs	https://doi.org/10.1016/0038-0717(90)90036-Y
State	Published - 1990

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title = "Cultural conditions affecting Azospirillum brasilense cell aggregation and adsorption to maize roots",

abstract = "Sugars. EDTA and trypsin were tested for their effect in preventing aggregation of Azospirillum brasilense Cd cell suspension grown on malate as a C-source. d-Fructose (25-30 mM) strongly inhibited cell aggregation at various pH levels (5.0-8.4). Treatment of malate-grown cells with 20 mM d-fructose for 7.5 min. or with maize root extracts, significantly promoted the subsequent adsorption of Azospirillum cells to maize roots. No enhancement of adsorption could be observed when roots had been treated with d-fructose. The highest cell adsorption to roots was obtained with Azospirillum grown on d-fructose as C-source in combination with cells that had been exposed to root extract.",

author = "Eli Zaady and Yaacov Okon",

year = "1990",

doi = "10.1016/0038-0717(90)90036-Y",

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AU - Zaady, Eli

AU - Okon, Yaacov

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N2 - Sugars. EDTA and trypsin were tested for their effect in preventing aggregation of Azospirillum brasilense Cd cell suspension grown on malate as a C-source. d-Fructose (25-30 mM) strongly inhibited cell aggregation at various pH levels (5.0-8.4). Treatment of malate-grown cells with 20 mM d-fructose for 7.5 min. or with maize root extracts, significantly promoted the subsequent adsorption of Azospirillum cells to maize roots. No enhancement of adsorption could be observed when roots had been treated with d-fructose. The highest cell adsorption to roots was obtained with Azospirillum grown on d-fructose as C-source in combination with cells that had been exposed to root extract.

AB - Sugars. EDTA and trypsin were tested for their effect in preventing aggregation of Azospirillum brasilense Cd cell suspension grown on malate as a C-source. d-Fructose (25-30 mM) strongly inhibited cell aggregation at various pH levels (5.0-8.4). Treatment of malate-grown cells with 20 mM d-fructose for 7.5 min. or with maize root extracts, significantly promoted the subsequent adsorption of Azospirillum cells to maize roots. No enhancement of adsorption could be observed when roots had been treated with d-fructose. The highest cell adsorption to roots was obtained with Azospirillum grown on d-fructose as C-source in combination with cells that had been exposed to root extract.

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Cultural conditions affecting Azospirillum brasilense cell aggregation and adsorption to maize roots

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