Podcast
Questions and Answers
What are some factors to consider when commercializing PGPB?
What are some factors to consider when commercializing PGPB?
Rhizospheric versus endophytic, appropriate biological activity, non-pathogenic, easy to prepare, easy to ship and store, stable
What are wet inoculants in the context of PGPB commercialization?
What are wet inoculants in the context of PGPB commercialization?
Bacterial suspensions sold in 1-5 lit plastic bags
How are peat-based inoculants different from wet inoculants?
How are peat-based inoculants different from wet inoculants?
PGPB mixed with peat, stable for several years, support 10^9-10^10 bacterial cells per gram of peat
What is the purpose of using adhesives and polymers in peat-based inoculants?
What is the purpose of using adhesives and polymers in peat-based inoculants?
When did the earliest recorded instance of commercialization of PGPB occur?
When did the earliest recorded instance of commercialization of PGPB occur?
What are some challenges associated with shipping wet inoculants for PGPB?
What are some challenges associated with shipping wet inoculants for PGPB?
Why is genetic engineering of plants with the entire nif gene cluster not effective for increasing nitrogen fixation?
Why is genetic engineering of plants with the entire nif gene cluster not effective for increasing nitrogen fixation?
What is the main challenge in regulating nitrogen fixation in plants?
What is the main challenge in regulating nitrogen fixation in plants?
Explain the consequence of increasing nitrogen fixation in terms of energy requirement.
Explain the consequence of increasing nitrogen fixation in terms of energy requirement.
Why may a bacterium engineered to fix a higher level of nitrogen lose its effectiveness as a PGPB?
Why may a bacterium engineered to fix a higher level of nitrogen lose its effectiveness as a PGPB?
Describe the complexity of nodulation in nitrogen fixation.
Describe the complexity of nodulation in nitrogen fixation.
How do rhizobia utilize plant exudates as chemo-attractants?
How do rhizobia utilize plant exudates as chemo-attractants?
How do siderophore-producing bacteria promote plant growth?
How do siderophore-producing bacteria promote plant growth?
What is the principal storage form of phosphorus in plants?
What is the principal storage form of phosphorus in plants?
What are the two main forms of insoluble phosphorus in soil?
What are the two main forms of insoluble phosphorus in soil?
What is the role of phosphatases in plant growth?
What is the role of phosphatases in plant growth?
Which minerals are considered inorganic forms of phosphorus in soil?
Which minerals are considered inorganic forms of phosphorus in soil?
How is Apatite commonly used in agriculture?
How is Apatite commonly used in agriculture?
What are the characteristics of bacterial shape as described in the text?
What are the characteristics of bacterial shape as described in the text?
How do filamentous bacteria reproduce?
How do filamentous bacteria reproduce?
What is the size range of bacteria in a young culture?
What is the size range of bacteria in a young culture?
What type of DNA do bacteria possess?
What type of DNA do bacteria possess?
What envelops the cell walls of most plant pathogenic bacteria?
What envelops the cell walls of most plant pathogenic bacteria?
What do Gram-negative bacteria have that Gram-positive bacteria do not?
What do Gram-negative bacteria have that Gram-positive bacteria do not?
What is the function of the nitrogenase enzyme other than fixing nitrogen?
What is the function of the nitrogenase enzyme other than fixing nitrogen?
How are the nif genes arranged in bacteria like Rhizobia spp. and PGPB?
How are the nif genes arranged in bacteria like Rhizobia spp. and PGPB?
What is the role of the NifA protein in nitrogen fixation?
What is the role of the NifA protein in nitrogen fixation?
How does the NifL protein regulate nitrogen fixation under unfavorable conditions?
How does the NifL protein regulate nitrogen fixation under unfavorable conditions?
What happens to the transcription of nif genes in the presence of oxygen or high levels of fixed nitrogen?
What happens to the transcription of nif genes in the presence of oxygen or high levels of fixed nitrogen?
Do all nitrogen-fixing organisms have a NifL protein?
Do all nitrogen-fixing organisms have a NifL protein?
