Andmebaasi logo
 

Chemotactic responses of sweet flag (Acorus calamus L.) root exudates and evaluation of inoculation effects on its growth

Lühendatud kirje lehekülg
dc.contributor.authorPrakash, P.
dc.contributor.authorKarthikeyan, Balathandayutham
dc.contributor.authorJoe, Manoharan Melvin
dc.date.accessioned2021-04-20T08:11:29Z
dc.date.available2021-04-20T08:11:29Z
dc.date.issued2021
dc.descriptionSaabunud / Received 04.11.2020 ; Aktsepteeritud / Accepted 20.04.2021 ; Avaldatud veebis / Published online 20.04.2021 ; Vastutav autor / Corresponding author: B. Karthikeyan bkeyan473@gmail.comest
dc.description.abstractRoot exudate is an important source of nutrients for microorganisms in the rhizosphere and it plays a major role in the early colonization including chemotactic responses and adsorption of rhizospheric bacteria. In this study, we characterized the root exudates from sweet flag under hydroponic conditions and assessed their effect on plant growth. In the present study, the crude root fractions of sweet flag recorded a maximum yield of 520.6 μg plant–1 followed by cationic, anionic and neutral fractions. Among the qualitative and quantitative analysis of different fractions, the cationic fraction recorded a maximum of 90 μg plant–1 for glutamic acid, followed by aspartic acid, glycine, serine and proline. In the anionic fraction, malic acid recorded a maximum of 78.0 μg plant–1 followed by oxalic, succinic, citric and glutamic acid fractions. The neutral fractions included different saccharides, among which, fructose recorded a maximum of 42.5 μg plant–1, followed by glucose, maltose, ribose and arabinose. The relative chemotactic response (RCR) of PGPB (plant growth-promoting bacteria) strains towards different root exudate fractions of Acorus calamus was recorded and it was observed that the combination of Anionic + Cationic + Neutral fraction recorded maximum chemotactic response for PGPR strains. The adsorption of PGPR strains in the root of the Acorus calamus was recorded in three different phases of growth and among these, Log phase bacterial cells exhibited maximum colonization of 7.65 × 10–6 cells g–1 with A.venilandii (ACAzt-2). Inoculation effect of PGPB strains on the root exudate of Acorus calamus and its growth was evaluated and it was observed that the treatment T5 – Consortium recorded maximum plant height and root growth of Acorus calamus, followed by T2. Our results indicate that sweet flag root exudates induce chemotactic responses of PGPR strains and promoted their growth.eng
dc.identifier.issn2228-4893
dc.identifier.publicationAgraarteadus : Journal of Agricultural Science, 2021, vol. 32, no. 1, pp. 117–126est
dc.identifier.urihttp://hdl.handle.net/10492/6430
dc.identifier.urihttps://doi.org/10.15159/jas.21.04
dc.publisherEstonian Academic Agricultural Societyeng
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0) ; openAccesseng
dc.rights.holderAuthors of accepted articles retain all rights to use, reuse, and distribute the published research as long as the author credits the original publication in this journal. The authors submitting to the journal are expected to follow the general ethical guidelines regarding plagiarism. If in doubt consult the ICMJ guidelines on overlapping publications. Once accepted the journal retain the right to print and distribute the manuscript submitted by the author.eng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectroot exudateseng
dc.subjectAcorus calamuslat
dc.subjectplant growth-promoting bacteria (PGPB)eng
dc.subjectchemotaxiseng
dc.subjectarticleseng
dc.titleChemotactic responses of sweet flag (Acorus calamus L.) root exudates and evaluation of inoculation effects on its growtheng
dc.typeArticleeng

Failid

Originaal pakett

Nüüd näidatakse 1 - 1 1
Pisipilt
Nimi:
2021_1_prakash.pdf
Suurus:
1000.49 KB
Formaat:
Adobe Portable Document Format
Kirjeldus:
Article
Lae alla

Kollektsioonid

2021, Vol. 32, No. 1