If we use phosphate solubilizing bacteria as biofertilizer in farms, may this bacteria cause adverse effect on natural ecosystems like rivers and lakes?
If by dangerous you mean dangerous to humans, there could be a scenario in which the release of your bacteria results in higher phosphorus concentrations than normal in an area where you might anticipate the growth of toxic phytoplankton, dinoflagellates in particular. I am NOT an expect in this field but it would seem that any time you inadvertently increase nutrient concentrations no matter what the source you have the potential for adverse effects you might not anticipate without knowing the local biology. I would recommend extreme caution before deploying something like this in the field.
I stick with Dr. Lane approach. Many unintended issues can emerge from introducing non-native species, but especially if they are invasive. Addition of P to water resources often leads to increased aquatic vegetation, and without adequate natural controls can lead to deliterious results. If desired to continue pursuit of idea, perhaps some lab testing or containment area with confined sample(s) and discussion and collaborative testing with ecological and bacterial experts in a cooperative study could be conducted on a trial basis.
You add any amount of PSBs in agriculture farm , their population will never gain an alarming proportion , to be the potential threat to water bodies...
Thank you for your kind reply, actualy i was isolated native strains from my province and chosed the best phosphate solubiling ability whithin the strains.I am going to use it as biofertilizer with the aim of increasing water soluable phosphate and decreasing chemical fertilizers to fertilize fish ponds. I will use this strain near" caspian sea " in Iran.
May this bacteria cause effect (eutrification, increasing vegetation, or ....) on caspian sea P level?
Problem like eutrophication is because of chemicals poured into such water bodies , not because of any form of microbes , by and large...
Dr.Anoop Kumar Srivastava. please explain in detail to this question .... I am not convinced....
As an expert on this field I can tell that phosphorus is a limitant factor in water bodies. An increment in this variable may result in an unbalance of the phitoplankton and in the whole communitty (bottom-up effect). And this problem will affect the complete basin if in a river.
Very interesting response Daniel..do you anticipate any possibility of eutrophication in water bodies , i doubt under such P-starving condition..??
Actually he must establish the basal PO4 concentrations. Also a eutrophication measurement should be taken, it could be the water turbidity and it must be monitored. If we are purist, any antropological modification of the nutrients present it can be catalogued as an eutrophication.
Daniel, i wonder when such situation will ever arise considering the large scale P-limitation , especially when are you looking towards microbial interventions..
thank you ....
Dr. Srivastava do you convinced that phosphate Bio-fertilizers may have adverse effect on nature?
Mostafa it will affect, that is a fact. If the effect is large or not, will deppend of the P ammount. Just consider that and if possible measure ir.
Such effects need to be evaluated only in terms of inorganic - P as phosphates as a measure any possibility towards process like eutrophication , not as PSBs as pollutants.Such PSBs would play in scavenging inorganic phosphates , in case , P is in surplus...
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