Abstract
Trichoderma sp., a well known biological control agent against several phytopathogens, was tested for its phosphate (P) solubilizing potential. Fourteen strains of Trichoderma sp. were isolated from the forest tree rhizospheres of pinus, deodar, bamboo, guava and oak on Trichoderma selective medium. The isolates were tested for their in-vitro P-solubilizing potential using National Botanical Research Institute Phosphate (NBRIP) broth containing tricalcium phosphate (TCP) as the sole P source, and compared with a standard culture of T. harzianum. All the cultures were found to solubilize TCP but with varying potential. The isolate DRT-1 showed maximum amount of soluble phosphate (404.07 µg.ml-1), followed by the standard culture of T. harzianum (386.42 µg.ml-1) after 96 h of incubation at 30+1(0)C. Extra-cellular acid and alkaline phosphatases of the fungus were induced only in the presence of insoluble phosphorus source (TCP). High extra-cellular alkaline phosphatase activity was recorded for the isolate DRT-1 (14.50 U.ml-1) followed by the standard culture (13.41 U.ml-1) at 72h. The cultures showed much lesser acid phosphatase activities. Under glasshouse conditions, Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters including shoot length, root length, fresh and dry weight of shoot as well as roots, in P-deficient soil containing only bound phosphate (TCP). Shoot weight was increased by 23% and 33% by inoculation with the isolate DRT-1 in the soil amended with 100 and 200 mg TCP kg-1 soil, respectively, after 60 d of sowing. The study explores high P-solubilizing potential of Trichoderma sp., which can be exploited for the solubilization of fixed phosphates present in the soil, thereby enhancing soil fertility and plant growth.
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Claims 6
Claim · model-written summary
All tested Trichoderma cultures solubilized TCP with varying potential.
- Taxon
- chickpea (Cicer arietinum)
Cicer arietinume1 - Interactor
- Trichoderma sp.
Trichodermae2symbiont - Outcome
- solubilize TCPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the cultures were found to solubilize TCP but with varying potential.”
e1“Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters”
e2“Trichoderma sp., a well known biological control agent against several phytopathogens”
Claim · model-written summary
DRT-1 yielded the maximum soluble phosphate after 96 hours.
- Taxon
- chickpea (Cicer arietinum)Cicer arietinume1
- Material
- DRT-1e0
- Interactor
- Trichoderma sp.Trichodermae2symbiont
- Outcome
- soluble phosphatee0
- Direction
- maximume0
- Value
- 404.07 µg.ml-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolate DRT-1 showed maximum amount of soluble phosphate (404.07 µg.ml-1), followed by the standard culture of T. harzianum (386.42 µg.ml-1) after 96 h of incubation at 30+1(0)C.”
e1“Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters”
e2“Trichoderma sp., a well known biological control agent against several phytopathogens”
Claim · model-written summary
Insoluble TCP induced fungal extracellular acid and alkaline phosphatases.
- Taxon
- chickpea (Cicer arietinum)Cicer arietinume1
- Treatment
- insoluble phosphorus source (TCP)e0
- Interactor
- Trichoderma sp.Trichodermae2symbiont
- Outcome
- Extra-cellular acid and alkaline phosphatasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extra-cellular acid and alkaline phosphatases of the fungus were induced only in the presence of insoluble phosphorus source (TCP).”
e1“Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters”
e2“Trichoderma sp., a well known biological control agent against several phytopathogens”
Claim · model-written summary
DRT-1 showed high extracellular alkaline phosphatase activity.
- Taxon
- chickpea (Cicer arietinum)Cicer arietinume1
- Material
- DRT-1e0
- Interactor
- Trichoderma sp.Trichodermae2symbiont
- Outcome
- extra-cellular alkaline phosphatase activitye0
- Direction
- Highe0
- Value
- 14.50 U.ml-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High extra-cellular alkaline phosphatase activity was recorded for the isolate DRT-1 (14.50 U.ml-1) followed by the standard culture (13.41 U.ml-1) at 72h.”
e1“Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters”
e2“Trichoderma sp., a well known biological control agent against several phytopathogens”
Claim · model-written summary
Trichoderma inoculation increased chickpea shoot and root growth and biomass.
- Taxon
- chickpea (Cicer arietinum)Cicer arietinume0
- Treatment
- Trichoderma sp. inoculatione0
- Interactor
- Trichoderma sp.Trichodermae0symbiont
- Outcome
- shoot length, root length, fresh and dry weight of shoot as well as rootse0
- Direction
- increasede0
- Setting
- glasshouse conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under glasshouse conditions, Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters including shoot length, root length, fresh and dry weight of shoot as well as roots, in P-deficient soil containing only bound phosphate (TCP).”
Claim · model-written summary
DRT-1 inoculation increased shoot weight by 23% with 100 mg TCP.
- Taxon
- chickpea (Cicer arietinum)Cicer arietinume1
- Treatment
- inoculation with the isolate DRT-1e0
- Interactor
- Trichoderma sp.Trichodermae2symbiont
- Outcome
- Shoot weighte0
- Direction
- increasede0
- Value
- 23%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot weight was increased by 23% and 33% by inoculation with the isolate DRT-1 in the soil amended with 100 and 200 mg TCP kg-1 soil, respectively, after 60 d of sowing.”
e1“Trichoderma sp. inoculation increased chickpea (Cicer arietinum) growth parameters”
e2“Trichoderma sp., a well known biological control agent against several phytopathogens”
The same questions in other papers
Trichoderma · growth · Cicer arietinum (chickpea)Positive and negative results
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- negative
- positive
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See all 14 papers →inoculation · growth · Cicer arietinum (chickpea)Positive and negative results
134 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
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See all 152 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.