In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.)
In this study, bacteria were isolated from the rhizosphere and inside the roots of canola (Brassica napus L.) plants grown in the field from northern Iran. Firstly, 150 strains (endophytic and rhizospheric isolates) isolated from canola were characterized for plant growth promoting (PGP) traits. Of...
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Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
2014
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oai:scielo:S0718-951620140002000192014-07-30In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.)Etesami,HMirsyed Hosseini,HAlikhani,H.A Root colonization endophyte canola rice plant growth promoting traits IAA In this study, bacteria were isolated from the rhizosphere and inside the roots of canola (Brassica napus L.) plants grown in the field from northern Iran. Firstly, 150 strains (endophytic and rhizospheric isolates) isolated from canola were characterized for plant growth promoting (PGP) traits. Of them, one hundred isolates produced indole-3-acetic acid (IAA), whereas 17 isolates solubilized phosphate, 44 isolates produced siderophore, 34 produced 1-aminocyclopropane-1-carboxylate (ACC) deaminase and five produced hydrocyanic acid (HCN). All of the screened isolates with different growth promoting traits were separately inoculated as different mixtures on two rice cultivars under gnotobiotic conditions. A total of 22 endophytic isolates were re-isolated from two rice cultivars and characterized for Plant Growth Promoting (PGP) traits again. All 22 endophytic isolates produced IAA. Secondly, the colonization and growth promoting effects of the IAA producing endophytic strains were compared in inoculated rice plantlets as single-strain inoculants. All of the IAA producing strains were consistently more active in colonizing rice seedlings as compared with other isolates. Therefore, it seems that IAA production may be required for endophytic competence as compared to other PGP traits in rice seedlings. In addition, this study indicates that the selected bacterial isolates based on their IAA producing trait have the potential for PGP and more colonization of rice.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.2 20142014-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200019en10.4067/S0718-95162014005000039 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Root colonization endophyte canola rice plant growth promoting traits IAA |
| spellingShingle |
Root colonization endophyte canola rice plant growth promoting traits IAA Etesami,H Mirsyed Hosseini,H Alikhani,H.A In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| description |
In this study, bacteria were isolated from the rhizosphere and inside the roots of canola (Brassica napus L.) plants grown in the field from northern Iran. Firstly, 150 strains (endophytic and rhizospheric isolates) isolated from canola were characterized for plant growth promoting (PGP) traits. Of them, one hundred isolates produced indole-3-acetic acid (IAA), whereas 17 isolates solubilized phosphate, 44 isolates produced siderophore, 34 produced 1-aminocyclopropane-1-carboxylate (ACC) deaminase and five produced hydrocyanic acid (HCN). All of the screened isolates with different growth promoting traits were separately inoculated as different mixtures on two rice cultivars under gnotobiotic conditions. A total of 22 endophytic isolates were re-isolated from two rice cultivars and characterized for Plant Growth Promoting (PGP) traits again. All 22 endophytic isolates produced IAA. Secondly, the colonization and growth promoting effects of the IAA producing endophytic strains were compared in inoculated rice plantlets as single-strain inoculants. All of the IAA producing strains were consistently more active in colonizing rice seedlings as compared with other isolates. Therefore, it seems that IAA production may be required for endophytic competence as compared to other PGP traits in rice seedlings. In addition, this study indicates that the selected bacterial isolates based on their IAA producing trait have the potential for PGP and more colonization of rice. |
| author |
Etesami,H Mirsyed Hosseini,H Alikhani,H.A |
| author_facet |
Etesami,H Mirsyed Hosseini,H Alikhani,H.A |
| author_sort |
Etesami,H |
| title |
In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| title_short |
In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| title_full |
In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| title_fullStr |
In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| title_full_unstemmed |
In planta selection of plant growth promoting endophytic bacteria for rice (Oryza sativa L.) |
| title_sort |
in planta selection of plant growth promoting endophytic bacteria for rice (oryza sativa l.) |
| publisher |
Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo |
| publishDate |
2014 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200019 |
| work_keys_str_mv |
AT etesamih inplantaselectionofplantgrowthpromotingendophyticbacteriaforriceoryzasatival AT mirsyedhosseinih inplantaselectionofplantgrowthpromotingendophyticbacteriaforriceoryzasatival AT alikhaniha inplantaselectionofplantgrowthpromotingendophyticbacteriaforriceoryzasatival |
| _version_ |
1714206486043820032 |