Abstract
Spot blotch (SB) caused by Cochliobolus sativus has been the major yield-reducing factor for barley production during the last decade. In this study, the correlation between aggressiveness and in vitro xylanase production of 29 isolates of C. sativus was investigated. Isolate aggressiveness was evaluated in term of lesion form in barley leaves. Additionally, the isolates were compared for their ability to produce in vitro significant levels of xylanase activities when grown in a liquid medium. Aggressive isolates released more xylanase of weakly aggressive isolates. Correlation tests analysis revealed a significant relationship (r = 0.84, r = 0.50; P < 0.01) between the xylanase (per unit fungal mass) and aggressiveness on the two barley cultivars Arabi Abiad and Bowman, respectively. Correlation between the production of this enzyme and the origin of the isolates was not found. The results indicate that the production of xylanase influences the aggressiveness of the isolates of C. sativus towards barley seedlings.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Aggressive C. sativus isolates released more xylanase than weakly aggressive isolates.
- Taxon
- Cochliobolus sativus
Bipolaris sorokinianat0 - Outcome
- xylanasee0
- Direction
- moree0
- Comparator
- weakly aggressive isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aggressive isolates released more xylanase of weakly aggressive isolates.”
t0“Cochliobolus sativus”
Claim · model-written summary
Fungal xylanase per unit mass correlated significantly with aggressiveness on barley cultivar Arabi Abiad (r = 0.84).
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Material
- Arabi Abiade0
- Interactor
- Cochliobolus sativusBipolaris sorokinianat0pathogen
- Gene
- xylanasee0
- Outcome
- aggressivenesse0
- Direction
- relationshipe0
- Value
- r = 0.84e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“significant relationship (r = 0.84, r = 0.50; P < 0.01) between the xylanase (per unit fungal mass) and aggressiveness on the two barley cultivars Arabi Abiad and Bowman, respectively.”
t0“Cochliobolus sativus”
Claim · model-written summary
Fungal xylanase per unit mass correlated significantly with aggressiveness on barley cultivar Bowman (r = 0.50).
- Taxon
- barleyHordeum vulgaree0
- Material
- Bowmane0
- Interactor
- Cochliobolus sativusBipolaris sorokinianat0pathogen
- Gene
- xylanasee0
- Outcome
- aggressivenesse0
- Direction
- relationshipe0
- Value
- r = 0.50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant relationship (r = 0.84, r = 0.50; P < 0.01) between the xylanase (per unit fungal mass) and aggressiveness on the two barley cultivars Arabi Abiad and Bowman, respectively.”
t0“Cochliobolus sativus”
Claim · model-written summary
Xylanase production was not correlated with isolate origin.
- Taxon
- Cochliobolus sativusBipolaris sorokinianat0
- Gene
- xylanasee0
- Outcome
- Correlation between the production of this enzyme and the origin of the isolatese0
- Direction
- not founde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aggressive isolates released more xylanase of weakly aggressive isolates. Correlation tests analysis revealed a significant relationship (r = 0.84, r = 0.50; P < 0.01) between the xylanase (per unit fungal mass) and aggressiveness on the two barley cultivars Arabi Abiad and Bowman, respectively. Correlation between the production of this enzyme and the origin of the isolates was not found.”
t0“Cochliobolus sativus”
Claim · model-written summary
The authors infer that xylanase production influences C. sativus aggressiveness toward barley seedlings.
- Taxon
- barleyHordeum vulgaree0
- Interactor
- C. sativusBipolaris sorokinianae0pathogen
- Gene
- xylanasee0
- Outcome
- aggressiveness of the isolates of C. sativus towards barley seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the production of xylanase influences the aggressiveness of the isolates of C. sativus towards barley seedlings.”