Abstract
The effects of benzothiadiazole(BTH) spraying and infection of Erysiphe cucurbitacearum on defensive enzyme system to melon powdery mildew were investigated in two melon(Cucumis melo) cultivars with different disease resistance,via determination of leaf POD,PPO and PAL activities.The results showed that POD,PPO and PAL activities in melon leaves were significantly increased after BTH spraying and Erysiphaceae cucurbitacearum inoculation.The effect of BTH on PPO activity in the disease-resistant cultivar was earlier in time and higher in intensity than that in the susceptible one.No significant difference in leaf PAL activity was found between the cultivars after BTH spraying and Erysiphe cucurbitacearum inoculation,but the response of the disease-resistant cultivar was far earlier in time than in the susceptible one.The results suggested that the effect of BTH spraying may transfer to untreated tissues via plant transduction system to increase melon resistance and defensive enzyme activity systematically.
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Claims 5
Claim · model-written summary
POD, PPO and PAL activities in melon leaves increased significantly after BTH spraying and powdery mildew inoculation.
- Taxon
- melon
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Cucumis meloe1 - Organ / stage
- leavese1
- Treatment
- BTH sprayinge1
- Interactor
- Erysiphaceae cucurbitacearume1pathogen
- Outcome
- POD,PPO and PAL activitiese1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“The results showed that POD,PPO and PAL activities in melon leaves were significantly increased after BTH spraying and Erysiphaceae cucurbitacearum inoculation”
Claim · model-written summary
BTH effect on PPO activity was earlier and higher in the disease-resistant melon cultivar than in the susceptible one.
- Taxon
- melonCucumis meloe1
- Material
- disease-resistant cultivare2
- Treatment
- BTHe2
- Outcome
- PPO activitye2
- Direction
- highere2
- Comparator
- susceptible onee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that POD,PPO and PAL activities in melon leaves were significantly increased after BTH spraying and Erysiphaceae cucurbitacearum inoculation”
e2“The effect of BTH on PPO activity in the disease-resistant cultivar was earlier in time and higher in intensity than that in the susceptible one”
Claim · model-written summary
No significant difference in leaf PAL activity was found between the melon cultivars after BTH spraying and powdery mildew inoculation.
- Taxon
- melonCucumis meloe1
- Treatment
- BTH sprayinge3
- Interactor
- Erysiphe cucurbitacearume3pathogen
- Outcome
- leaf PAL activitye3
- Direction
- no_changeinferrede3
- Comparator
- the cultivarse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that POD,PPO and PAL activities in melon leaves were significantly increased after BTH spraying and Erysiphaceae cucurbitacearum inoculation”
e3“No significant difference in leaf PAL activity was found between the cultivars after BTH spraying and Erysiphe cucurbitacearum inoculation”
Claim · model-written summary
The disease-resistant melon cultivar responded earlier in leaf PAL activity than the susceptible cultivar after BTH spraying.
- Taxon
- melonCucumis meloe1
- Material
- disease-resistant cultivare3
- Treatment
- BTH sprayinge3
- Outcome
- leaf PAL activitye3
- Direction
- earliere3
- Comparator
- susceptible onee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that POD,PPO and PAL activities in melon leaves were significantly increased after BTH spraying and Erysiphaceae cucurbitacearum inoculation”
e3“No significant difference in leaf PAL activity was found between the cultivars after BTH spraying and Erysiphe cucurbitacearum inoculation,but the response of the disease-resistant cultivar was far earlier in time than in the susceptible one”
Claim · model-written summary
BTH spraying may transfer to untreated melon tissues through the plant transduction system, increasing resistance and defensive enzyme activity systemically.
- Taxon
- melonCucumis meloe4
- Organ / stage
- untreated tissuese4
- Treatment
- BTH sprayinge4
- Outcome
- melon resistance and defensive enzyme activitye4
- Qualifier
- via plant transduction systeme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results suggested that the effect of BTH spraying may transfer to untreated tissues via plant transduction system to increase melon resistance and defensive enzyme activity systematically”
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See all 6 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.