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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Singh, Dhananjaya P. Prabha, Ratna Yandigeri, Mahesh S. Arora, Dilip K. |
| Description | Country affiliation: India Author Affiliation: Singh DP ( National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, India. dpsfarm@rediffmail.com) |
| Abstract | Phenylpropanoids, flavonoids and plant growth regulators in rice (Oryza sativa) variety (UPR 1823) inoculated with different cyanobacterial strains namely Anabaena oryzae, Anabaena doliolum, Phormidium fragile, Calothrix geitonos, Hapalosiphon intricatus, Aulosira fertilissima, Tolypothrix tenuis, Oscillatoria acuta and Plectonema boryanum were quantified using HPLC in pot conditions after 15 and 30 days. Qualitative analysis of the induced compounds using reverse phase HPLC and further confirmation with LC-MS/MS showed consistent accumulation of phenolic acids (gallic, gentisic, caffeic, chlorogenic and ferulic acids), flavonoids (rutin and quercetin) and phytohormones (indole acetic acid and indole butyric acid) in rice leaves. Plant growth promotion (shoot, root length and biomass) was positively correlated with total protein and chlorophyll content of leaves. Enzyme activity of peroxidase and phenylalanine ammonia lyase and total phenolic content was fairly high in rice leaves inoculated with O. acuta and P. boryanum after 30 days. Differential systemic accumulation of phenylpropanoids in plant leaves led us to conclude that cyanobacterial inoculation correlates positively with plant growth promotion and stress tolerance in rice. Furthermore, the study helped in deciphering possible mechanisms underlying plant growth promotion and stress tolerance in rice following cyanobacterial inoculation and indicated the less explored avenue of cyanobacterial colonization in stress tolerance against abiotic stress. |
| File Format | HTM / HTML |
| ISSN | 00036072 |
| Issue Number | 4 |
| Volume Number | 100 |
| e-ISSN | 15729699 |
| Journal | Antonie van Leeuwenhoek |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2011-11-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Immunology Cyanobacteria Growth & Development Flavonoids Metabolism Oryza Sativa Microbiology Plant Growth Regulators Stress, Physiological Physiology Plant Leaves Plant Roots Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Molecular Biology Microbiology |
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