Abstract
Tomato (Lycopersicon exculentum L.) is a popular vegetable widely grown in the tropics, wthich is mainly attacked by Fusarium wilt incited by Fusarium oxysporum f sp. lycopersici. In this present scenario, ecofriendly alternative strategies such as use of fungi from rhizosphere and endophytic bacteria are being explored. Fungal antagonistic Trichoderma spp. are effective for the management of soil borne plant pathogens. Efficacy of various isolates of T.virens were evaluated under green house condition for efficacy in suppressing incidence of Fusarium wilt disease and promoting plant growth in tomato. Among the various isolates tested, native isolates of T.virens (Tv 1 ) increased the plant growth and highly inhibited the mycelial growth of the pathogen under in vitro condition. In green house studies seed treatment plus soil application of talc based formulation of T.virens (Tv 1 ) significantly reduced incidence of the diseases (54.66% more efficient than control), compared to the other isolates of T.virens. Expression of various defence related enzymes was found involved in the induction of systemic resistance against pathogen infection. Tomato plants treated with seed @ 4gkg -1 plus soil application of 4kg ha -1 of talc based formulation of T. virens (Tv 1 ) with challenge inoculation of Fusarium enhance the maximum induction of defense enzyme such as Peroxidase (PO), Polyphenol Oxidase (PPO) and Phenylalanine Ammonia Lyase (PAL) rather than the other isolates of T.virens. The enzyme activity increased from 7 th day of sampling and the maximum was observed on 14 th day of sampling and then it slightly decreased.
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Claims 6
Claim · model-written summary
Native T. virens isolate Tv 1 increased tomato plant growth.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- T.virens (Tv 1 )e0
- Interactor
- T.virensTrichoderma virense0biocontrol_agent
- Outcome
- plant growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“native isolates of T.virens (Tv 1 ) increased the plant growth”
e1“plant growth in tomato”
Claim · model-written summary
Native T. virens isolate Tv 1 strongly inhibited pathogen mycelial growth in vitro.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- T.virens (Tv 1 )e0
- Interactor
- Fusarium oxysporum f sp. lycopersici
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume1pathogen - Second interactor
- T.virensTrichoderma virense0biocontrol_agent
- Outcome
- mycelial growth of the pathogene0
- Direction
- inhibitede0
- Setting
- in vitro conditione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“native isolates of T.virens (Tv 1 ) increased the plant growth and highly inhibited the mycelial growth of the pathogen under in vitro condition”
e1“Fusarium wilt incited by Fusarium oxysporum f sp. lycopersici”
e2“plant growth in tomato”
Claim · model-written summary
Seed treatment plus soil application of Tv 1 formulation reduced tomato Fusarium wilt incidence, 54.66% more efficiently than control.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- seed treatment plus soil application of talc based formulation of T.virens (Tv 1 )e0
- Interactor
- Fusarium oxysporum f sp. lycopersiciFusarium oxysporume1pathogen
- Second interactor
- T.virensTrichoderma virense0biocontrol_agent
- Outcome
- incidence of the diseasese0
- Direction
- reducede0
- Value
- 54.66%e0
- Comparator
- controle0
- Setting
- green housee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment plus soil application of talc based formulation of T.virens (Tv 1 ) significantly reduced incidence of the diseases (54.66% more efficient than control), compared to the other isolates of T.virens”
e1“Fusarium wilt incited by Fusarium oxysporum f sp. lycopersici”
e2“plant growth in tomato”
e3“In green house studies”
Claim · model-written summary
Defense enzyme expression was linked by the authors to induced systemic resistance to pathogen infection.
- Taxon
- TomatoSolanum lycopersicume1
- Gene
- defence related enzymese0
- Outcome
- induction of systemic resistance against pathogen infectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expression of various defence related enzymes was found involved in the induction of systemic resistance against pathogen infection”
e1“Tomato plants”
Claim · model-written summary
Tv 1 seed and soil treatment with Fusarium challenge gave maximal tomato PO, PPO and PAL induction relative to other isolates.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- seed @ 4gkg -1 plus soil application of 4kg ha -1 of talc based formulation of T. virens (Tv 1 )e0
- Second interactor
- T. virensTrichoderma virense0biocontrol_agent
- Gene
- Peroxidase (PO), Polyphenol Oxidase (PPO) and Phenylalanine Ammonia Lyase (PAL)e0
- Outcome
- induction of defense enzymee0
- Direction
- maximume0
- Comparator
- other isolates of T.virense0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato plants treated with seed @ 4gkg -1 plus soil application of 4kg ha -1 of talc based formulation of T. virens (Tv 1 ) with challenge inoculation of Fusarium enhance the maximum induction of defense enzyme such as Peroxidase (PO), Polyphenol Oxidase (PPO) and Phenylalanine Ammonia Lyase (PAL) rather than the other isolates of T.virens”
Claim · model-written summary
Tomato defense enzyme activity rose from day 7, peaked on day 14, and then slightly declined.
- Taxon
- TomatoSolanum lycopersicume1
- Outcome
- enzyme activitye0
- Direction
- increasede0
- Qualifier
- maximum was observed on 14 th day of sampling and then it slightly decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enzyme activity increased from 7 th day of sampling and the maximum was observed on 14 th day of sampling and then it slightly decreased”
e1“Tomato plants”
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See all 5 papers →seed treatment · Fusarium oxysporum · Solanum lycopersicum (tomato)Results agree
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- positive
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See all 9 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.