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Author Buddhika, U. V. A. ♦ Seneviratne, G. ♦ Abayasekara, C. L.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Seed Germination ♦ Bacterial Monoculture ♦ Iaa Production ♦ Indole Acetic Acid Production ♦ Fungal-bacterial Biofilms Differ ♦ Low Iaa Concentration ♦ Bacterial Monoculture Counterpart ♦ Fbbs Differ ♦ Developed Fungal-bacterial Biofilms ♦ Increased Plant Growth ♦ Biofilm Mode ♦ Regulatory Mechanism ♦ Plant Growth Benefit ♦ Iaa Concentration ♦ Bacterial Community ♦ Plant Growth ♦ Improved Seed Germination ♦ Fbbs Warrant ♦ Hormonal Effect ♦ Futuristic Agriculture ♦ Present Study ♦ Abstract Beneficial Microorganism ♦ Test Plant ♦ Seed Dormancy ♦ Result Low Seed Germination ♦ Indole Acetic Acid
Abstract Abstract- Beneficial microorganisms used as biofertilizers enhance seed germination and vigour through breaking seed dormancy and hormonal effects. However, their higher production of hormones like indole acetic acid (IAA) result low seed germination. Therefore, they need a regulation of the IAA production for increased plant growth. Such control exists in developed fungal-bacterial biofilms (FBBs), fungal surfaceattached bacterial communities. Therefore, present study compares two FBBs and their seven bacterial monoculture counterparts for IAA production and seed germination with maize as the test plant. Results showed that two biofilms increased seed germination and vigour significantly compared to the monocultures whereas, relatively low IAA concentrations, which were comparable with lower limit of the monocultures. IAA production of monocultures was related negatively to seedling vigour, confirming that relatively low IAA concentrations are more favorable for seed germination. Thus, results suggested a regulatory mechanism for optimizing IAA concentration, and/or factors other than IAA for plant growth benefits in the case of biofilms. In conclusion, it is clear that the FBBs differ from bacterial monocultures in regulating improved seed germination and plant growth. Consequently, FBBs warrant formulating biofertilizers in the biofilm mode for futuristic agriculture.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article