eprintid: 9627
rev_number: 11
eprint_status: archive
userid: 1305
dir: disk0/00/00/96/27
datestamp: 2016-08-22 03:55:50
lastmod: 2016-11-09 10:36:43
status_changed: 2016-08-22 03:55:50
type: article
metadata_visibility: show
creators_name: Alekhya, G
creators_name: Gopalakrishnan, S
icrisatcreators_name: Alekhya, G
icrisatcreators_name: Gopalakrishnan, S
affiliation: ICRISAT (Patancheru)
affiliation: JNTU (Hyderabad)
country: India
title: Plant growth-promotion by Streptomyces spp. in sorghum (Sorghum bicolor L.)
ispublished: pub
subjects: s1.4
subjects: s20302
divisions: CRPS2
crps: crp1.4
full_text_status: public
keywords: Gene expression, plant growth-promotion, scanning electron microscopy, Sorghum, Streptomyces spp, Plant growth
abstract: Seven strains of Streptomyces spp.: BCA-546 (KF770898), BCA-659 (KF770889), BCA-667 (KF770888), BCA-689 (KF770899), BCA-698 (KF770900), CAI-133 (KF770895) and CAI-8 (KF770890), reported earlier to produce biocontrol and plant growth-promoting (PGP) substances were further evaluated for PGP traits in sorghum under greenhouse and field conditions. Under greenhouse conditions, plant height, leaf area and weight, root length and weight, shoot weight, panicle weight and seed weight were enhanced in plots inoculated with Streptomyces spp. than the un-inoculated control at 30, 60 days after sowing (DAS) and at final harvest. Similarly, treatment with Streptomyces spp. led to growth and yield enhancements under field conditions at 60 DAS and final harvest. Among the seven strains, BCA-698, BCA-689, BCA-546 and BCA-659 were found to be superior for PGP. Under field conditions, at both flowering and harvest stages, the soil organic C, available P and total N were also found to improve with Streptomyces spp. treatments. A scanning electron microscopic study showed extensive root colonization of sorghum. The gene expression profiles revealed up-regulation of β-1,3-glucanase, indole acetic acid (IAA) and siderophore genes. Based on the present findings, the seven selected Streptomyces strains could be employed to enhance plant growth and yield in sorghum.
date: 2016-08-17
date_type: published
publication: African Journal of Biotechnology
volume: 15
number: 33
publisher: Academic Journals
pagerange: 1781-1788
id_number: 10.5897/AJB2016.15423
refereed: TRUE
issn: 1684-5315
official_url: http://dx.doi.org/10.5897/AJB2016.15423
related_url_url: https://scholar.google.co.in/scholar?as_q=Plant+Growth-Promotion+By+Streptomyces+Spp.+In+Sorghum+%28Sorghum+Bicolor+L.%29&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&hl=en&as_sdt=0%2C5
related_url_type: pub
citation:   Alekhya, G and Gopalakrishnan, S  (2016) Plant growth-promotion by Streptomyces spp. in sorghum (Sorghum bicolor L.).  African Journal of Biotechnology, 15 (33).  pp. 1781-1788.  ISSN 1684-5315     
document_url: http://oar.icrisat.org/9627/1/Alekhya_Gopalakrishan.pdf