Abstract
The effects of nutrients and microorganisms from olive carpospheres on germination of conidia and the development of appressoria of Colletotrichum godetiae were investigated. The final germination ratio was the result of a dynamic equilibrium between the positive action of nutrients and the negative competition of indigenous microorganisms. In contrast, formation of appressoria was greatly increased by microorganisms and reduced by nutrients. Removal of the microbial fraction from olive leachates rich in natural nutrients amplified the vegetative phase after conidium germination, resulting in increased germtube length, and delayed and reduced production of appressoria. Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of conidia and reduced the formation of appressoria. These results provide evidence that nutrients and microorganisms of the olive carposphere play important roles in the infection processes of C. godetiae. Since appressoria are necessary for successful host infection, microorganisms may favour the penetration of C. godetiae by stimulating the production of appressoria, reducing saprophyitic pre-infectional mycelial growth and reducing duration of the critical moist period required for host penetration.
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Claims 9
Claim · model-written summary
The final germination ratio of Colletotrichum godetiae conidia resulted from a dynamic equilibrium between the positive action of olive nutrients and the negative competition of indigenous microorganisms.
- Taxon
- Olive
Olea europaeat0 - Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- final germination ratioe0
- Qualifier
- dynamic equilibrium between the positive action of nutrients and the negative competition of indigenous microorganismse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The final germination ratio was the result of a dynamic equilibrium between the positive action of nutrients and the negative competition of indigenous microorganisms”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Microorganisms greatly increased the formation of appressoria by Colletotrichum godetiae.
- Taxon
- OliveOlea europaeat0
- Treatment
- microorganismse0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- formation of appressoriae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“formation of appressoria was greatly increased by microorganisms and reduced by nutrients”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Nutrients reduced the formation of appressoria by Colletotrichum godetiae.
- Taxon
- OliveOlea europaeat0
- Treatment
- nutrientse0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- formation of appressoriae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“formation of appressoria was greatly increased by microorganisms and reduced by nutrients”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Removing the microbial fraction from nutrient-rich olive leachates increased germtube length of Colletotrichum godetiae.
- Taxon
- OliveOlea europaeat0
- Treatment
- Removal of the microbial fraction from olive leachates rich in natural nutrientse0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- germtube lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of the microbial fraction from olive leachates rich in natural nutrients amplified the vegetative phase after conidium germination, resulting in increased germtube length, and delayed and reduced production of appressoria”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Removing the microbial fraction from nutrient-rich olive leachates delayed and reduced appressoria production by Colletotrichum godetiae.
- Taxon
- OliveOlea europaeat0
- Treatment
- Removal of the microbial fraction from olive leachates rich in natural nutrientse0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- production of appressoriae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of the microbial fraction from olive leachates rich in natural nutrients amplified the vegetative phase after conidium germination, resulting in increased germtube length, and delayed and reduced production of appressoria”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of Colletotrichum godetiae conidia.
- Taxon
- OliveOlea europaeat0
- Treatment
- Three exogenous nutrients (sucrose, asparagine and glycine)e0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- germination of conidiae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of conidia and reduced the formation of appressoria”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
Three exogenous nutrients (sucrose, asparagine and glycine) reduced the formation of appressoria by Colletotrichum godetiae.
- Taxon
- OliveOlea europaeat0
- Treatment
- Three exogenous nutrients (sucrose, asparagine and glycine)e0
- Interactor
- Colletotrichum godetiaeColletotrichum godetiaet0pathogen
- Outcome
- formation of appressoriae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of conidia and reduced the formation of appressoria”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
The authors conclude that nutrients and microorganisms of the olive carposphere play important roles in the infection processes of C. godetiae.
- Taxon
- oliveOlea europaeae0
- Interactor
- C. godetiaeColletotrichum godetiaee0pathogen
- Outcome
- infection processese0
- Qualifier
- nutrients and microorganisms of the olive carpospheree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrients and microorganisms of the olive carposphere play important roles in the infection processes of C. godetiae”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”
Claim · model-written summary
The authors suggest microorganisms may favour penetration of C. godetiae by stimulating appressoria production.
- Taxon
- OliveOlea europaeat0
- Treatment
- microorganismse0
- Interactor
- C. godetiaeColletotrichum godetiaee0pathogen
- Outcome
- penetration of C. godetiaee0
- Qualifier
- stimulating the production of appressoriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“microorganisms may favour the penetration of C. godetiae by stimulating the production of appressoria”
t0“Olive leachates affect germination of Colletotrichum godetiae conidia”