Abstract
Bacillus coagulans, a phosphatase- and phytase-producing bacterium was isolated and tested under greenhouse conditions and in the field in a loamy sand soil. Bacterial population build-up and efficiency was compared under sterilized and non-sterilized soil conditions. Exploitation of plant unavailable (poorly soluble) P was higher in sterilized soil, mainly due to an increased bacteria population. A gradual increase in microbial build-up of up to 21 times the inoculated population was observed over a 4-week period under the sterilized soil condition. Clusterbean influenced acid phosphatase and phytase activity. The depletion of organic P was much higher than the depletion of mineral and phytin P. The microbial contribution to the hydrolysis of the different P fractions was significantly higher than the plant contribution. The maximum effect of inoculation on different enzyme activities (acid phosphatase, alkaline phosphatase, phytase and dehydrogenase) was observed in pants between 5 and 8 weeks of age. A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation. The results suggested that B. coagulans produces phosphatases and phytase, which mobilized P from unavailable native P sources and enhanced the production of clusterbean.
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Claims 12
Claim · model-written summary
Plant-unavailable P exploitation was higher in sterilized soil.
- Outcome
- Exploitation of plant unavailable (poorly soluble) Pe0
- Direction
- highere0
- Setting
- sterilized soile0
Not reportedTaxon
Verbatim
e0“Exploitation of plant unavailable (poorly soluble) P was higher in sterilized soil, mainly due to an increased bacteria population.”
Claim · model-written summary
Microbial population increased up to 21-fold in sterilized soil over four weeks.
- Outcome
- microbial build-upe0
- Direction
- increasee0
- Value
- up to 21 timese0
- Setting
- sterilized soil conditione0
Not reportedTaxon
Verbatim
e0“A gradual increase in microbial build-up of up to 21 times the inoculated population was observed over a 4-week period under the sterilized soil condition.”
Claim · model-written summary
Clusterbean influenced acid phosphatase and phytase activity.
- Taxon
- Clusterbean
Cyamopsis tetragonolobae0 - Gene
- acid phosphatase and phytasee0
- Outcome
- acid phosphatase and phytase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clusterbean influenced acid phosphatase and phytase activity.”
Claim · model-written summary
Organic P depletion exceeded mineral and phytin P depletion.
Not reportedTaxon
Verbatim
e0“The depletion of organic P was much higher than the depletion of mineral and phytin P.”
Claim · model-written summary
Microbial contribution to P hydrolysis significantly exceeded plant contribution.
- Outcome
- contribution to the hydrolysis of the different P fractionse0
- Direction
- highere0
- Comparator
- plant contributione0
Not reportedTaxon
Verbatim
e0“The microbial contribution to the hydrolysis of the different P fractions was significantly higher than the plant contribution.”
Claim · model-written summary
Inoculation affected enzyme activities most at plant ages of five to eight weeks.
- Organ / stage
- between 5 and 8 weeks of agee0
- Treatment
- inoculatione0
- Outcome
- acid phosphatase, alkaline phosphatase, phytase and dehydrogenasee0
- Direction
- maximume0
Not reportedTaxonComparator
Verbatim
e0“The maximum effect of inoculation on different enzyme activities (acid phosphatase, alkaline phosphatase, phytase and dehydrogenase) was observed in pants between 5 and 8 weeks of age.”
Claim · model-written summary
Inoculation improved plant biomass by 25%.
Not reportedTaxonComparator
Verbatim
e0“A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation.”
Claim · model-written summary
Inoculation improved root length by 28%.
Not reportedTaxonComparator
Verbatim
e0“A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation.”
Claim · model-written summary
Inoculation improved plant P concentration by 22%.
Not reportedTaxonComparator
Verbatim
e0“A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation.”
Claim · model-written summary
Inoculation improved seed yield by 19%.
Not reportedTaxonComparator
Verbatim
e0“A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation.”
Claim · model-written summary
Inoculation improved straw yield by 28%.
Not reportedTaxonComparator
Verbatim
e0“A significant improvement in plant biomass (25%), root length (28%), plant P concentration (22%), seed (19%) and straw yield (28%) resulted from inoculation.”
Claim · model-written summary
The authors infer that B. coagulans enzymes mobilize native unavailable P and enhance clusterbean production.
- Taxon
- clusterbeanCyamopsis tetragonolobae0
- Interactor
- B. coagulans
Heyndrickxia coagulanse0symbiont - Gene
- phosphatases and phytasee0
- Outcome
- production of clusterbeane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results suggested that B. coagulans produces phosphatases and phytase, which mobilized P from unavailable native P sources and enhanced the production of clusterbean.”
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See all 30 papers →inoculation · growth · Cyamopsis tetragonoloba (cluster bean)Results agree
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See all 17 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.