Abstract
Foot rot is the most important disease in citrus in Spain. Phytophthora nicotianae var. parasitica is the major cause of this disease. Field treatments with classic contact fungicides have been extensively used for many years to combat stem and trunk Phytophthora diseases in citrus, while, more recently, foliar application of the systemic fungicide fosetyl‐A1 has been used with great success. It is now also possible to use a biological control method for foot rot disease. Myrothecium roridum , a cosmopolitan soil hyphomycete with high cellulolytic activity, produces toxins which are very active against Phytophthora fungi. Culture filtrates of M. roridum cultured in liquid medium with low sugar content strongly inhibit in vitro development of P.n. parasitica, P. syringae and P. capsici. In glasshouse trials employingcross inoculations of M. roridum and P.n. parasitica in stems of sweet orange and willowleaf mandarin seedlings, the bark lesions produced by Phytophthora were clearly stopped at 7 or 10 days after inoculation and the cankers subsequently did not show evident activity. In field trials, M. roridum inoculated into the roots of several citrus species limited development of cankers due to P.n. parasitica (artificial or natural infection). The good results open a new way for control of Phytophthora diseases in citrus.
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Claims 9
Claim · model-written summary
Fosetyl‐A1 foliar application has controlled Phytophthora disease in citrus with great success.
- Treatment
- foliar application of the systemic fungicide fosetyl‐A1e0
- Outcome
- Phytophthora diseasese1
- Direction
- great successe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of the systemic fungicide fosetyl‐A1 has been used with great success.”
e1“The good results open a new way for control of Phytophthora diseases in citrus.”
Claim · model-written summary
M. roridum culture filtrates strongly inhibited in vitro P.n. parasitica development.
- Treatment
- Culture filtrates of M. roridume0
- Interactor
- P.n. parasiticae0pathogen
- Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- development of P.n. parasiticae0
- Direction
- strongly inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Culture filtrates of M. roridum cultured in liquid medium with low sugar content strongly inhibit in vitro development of P.n. parasitica, P. syringae and P. capsici.”
e1“The good results open a new way for control of Phytophthora diseases in citrus.”
Claim · model-written summary
M. roridum culture filtrates strongly inhibited in vitro P. syringae development.
- Treatment
- Culture filtrates of M. roridume0
- Interactor
- P. syringaePhytophthora syringaee0pathogen
- Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- in vitro developmente0
- Direction
- strongly inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Culture filtrates of M. roridum cultured in liquid medium with low sugar content strongly inhibit in vitro development of P.n. parasitica, P. syringae and P. capsici.”
e1“The good results open a new way for control of Phytophthora diseases in citrus.”
Claim · model-written summary
M. roridum culture filtrates strongly inhibited in vitro P. capsici development.
- Treatment
- Culture filtrates of M. roridume0
- Interactor
- P. capsici
.jpg?width=60)
Phytophthora capsicie0pathogen - Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- in vitro developmente0
- Direction
- strongly inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Culture filtrates of M. roridum cultured in liquid medium with low sugar content strongly inhibit in vitro development of P.n. parasitica, P. syringae and P. capsici.”
e1“The good results open a new way for control of Phytophthora diseases in citrus.”
Claim · model-written summary
Cross inoculation stopped Phytophthora bark lesions in sweet orange seedlings after 7 or 10 days.
- Taxon
- sweet orange
Citrus sinensise0 - Treatment
- cross inoculations of M. roridum and P.n. parasiticae0
- Interactor
- P.n. parasiticae0pathogen
- Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- bark lesions produced by Phytophthorae0
- Direction
- stoppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In glasshouse trials employingcross inoculations of M. roridum and P.n. parasitica in stems of sweet orange and willowleaf mandarin seedlings, the bark lesions produced by Phytophthora were clearly stopped at 7 or 10 days after inoculation”
Claim · model-written summary
Cross inoculation stopped Phytophthora bark lesions in willowleaf mandarin seedlings after 7 or 10 days.
- Taxon
- willowleaf mandarine0
- Treatment
- cross inoculations of M. roridum and P.n. parasiticae0
- Interactor
- P.n. parasiticae0pathogen
- Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- bark lesions produced by Phytophthorae0
- Direction
- stoppede0
Not reportedComparator
Verbatim
e0“In glasshouse trials employingcross inoculations of M. roridum and P.n. parasitica in stems of sweet orange and willowleaf mandarin seedlings, the bark lesions produced by Phytophthora were clearly stopped at 7 or 10 days after inoculation”
Claim · model-written summary
Cankers showed no evident subsequent activity after glasshouse cross inoculations.
- Taxon
- sweet orangeCitrus sinensise1
- Interactor
- P.n. parasiticae1pathogen
- Second interactor
- M. roridumParamyrothecium roridume1biocontrol_agent
- Outcome
- cankers subsequently did not show evident activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cankers subsequently did not show evident activity.”
e1“In glasshouse trials employingcross inoculations of M. roridum and P.n. parasitica in stems of sweet orange and willowleaf mandarin seedlings”
Claim · model-written summary
Root inoculation with M. roridum limited Phytophthora canker development in field citrus.
- Treatment
- M. roridum inoculated into the rootse0
- Interactor
- P.n. parasiticae0pathogen
- Second interactor
- M. roridumParamyrothecium roridume0biocontrol_agent
- Outcome
- development of cankers due to P.n. parasiticae0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field trials, M. roridum inoculated into the roots of several citrus species limited development of cankers due to P.n. parasitica (artificial or natural infection).”
Claim · model-written summary
Authors see the findings as opening a new control approach for Phytophthora diseases of citrus.
- Outcome
- new way for control of Phytophthora diseasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The good results open a new way for control of Phytophthora diseases in citrus.”
The same questions in other papers
inoculation · disease · Citrus sinensis (sweet orange)Positive and negative results
4 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
11 papers more in this group
See all 15 papers →inoculation · growth · CitrusPositive and negative results
16 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
18 papers more in this group
See all 22 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.