Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar

GET THE APP

Estimation And Biochemical Characterization Of Diazotrophs In Rice Rhizosphere Soil For Their Plant Growth Promoting Traits | 4652
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
Open Access

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
Google Scholar citation report
Citations : 2154

Journal of Biotechnology & Biomaterials received 2154 citations as per Google Scholar report

Indexed In
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Open J Gate
  • Genamics JournalSeek
  • Academic Keys
  • ResearchBible
  • China National Knowledge Infrastructure (CNKI)
  • Access to Global Online Research in Agriculture (AGORA)
  • Electronic Journals Library
  • RefSeek
  • Hamdard University
  • EBSCO A-Z
  • OCLC- WorldCat
  • SWB online catalog
  • Virtual Library of Biology (vifabio)
  • Publons
  • Geneva Foundation for Medical Education and Research
  • Euro Pub
  • ICMJE
Recommended Journals
Share This Page

Estimation and biochemical characterization of diazotrophs in rice rhizosphere soil for their plant growth promoting traits

3rd World Congress on Biotechnology

Lalan Sharma, Arvind S. Rathore and Rajendra Prasad

Posters: Agrotechnol

DOI: 10.4172/2155-952X.S1.020

Abstract
Rice is one of the important cereal crops in the world, grown in the diverse environmental conditions. Plant root secrets different type of low and high molecular weight secondary compounds that affects rhizosphere microbial population. Rice crop absorb nitrogen in ammonical form for their growth and development in huge amount. In this study, biochemical characterization of nitrogen fixing bacteria were carried out on ten soil samples from different rice varieties rhizosphere of Directorate of Seed Research (DSR) field in 2011-2012. Diazotrophs were isolated on nitrogen free semisolid media i.e Jenson medium, Yeast Extract Mannitol Agar medium, and Ashby Sucrose Agar medium with different different carbon sources and pH values by using serial dilution method. A total number of 30 rhizobacteria of different morphotypes were selected and biochemically characterized (qualitative and quantitative) IAA production, HCN production and Siderophore production using ferric chloride perchloric reagent, glycine and CAS dye amended medium, respectively. Out of 37, 4 rhizobacterial isolates produced IAA (JA3,JB4, JD3 and JE2), 10 rhizobacterial isolates produced HCN (JA3, JE2, JF1, JH1, JH3, Y1, Y2, Y4, Y7 and Y9) and also 20 rhizobacterial isolates produced siderophore (JA1, JA2, JA3, JC2, JD1, JD3,JE1, JE2, JF1, JH1, JH2, JH3, Y1, Y4, Y6, Y7, Y9, Y10, A1, and A4) were screened in qualitative estimation. In another experiment, plant growth promoting traits as IAA, HCN and Siderophore production were estimated quantitatively. The rhizobacterial isolates that given positive results in qualitative screening were very much potential to secondary metabolites in comparisons to the others by calculating Optical Density (OD) using spectophotometer at 530nm. The results are of potential rhizobacterial isolates were showed all these three characteristics as IAA, HCN and Siderophore production i.e JA3- 1.143, 1.383, 1.592 and JE2- 1.681, 1.900 and 1.492, respectively. Therefore, isolation, identification and characterization of potential rhizobacteria are very much future concern.
Biography
Top