Abstract
A total of 45 endophytic bacterial isolates were isolated from the healthy rice cultivars viz; MTU 1010, BPT 5204 and NLR 34449 cultivated in Nellore and Chittoor districts of Andhra Pradesh. All the isolated endophytic bacterial isolates were evaluated for their antagonistic effect against bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae by agar well diffusion method. The diameter of inhibition zone formation ranged from 0 mm to 16.8 mm. Among 45 isolates, EMP-5 and EBK-3 isolates showed highest antagonistic effect with inhibition zone of 16.8 mm and 16.6 mm, respectively. Isolate EMP 5 was used for the management of BLB under field condition. Among all the treatments, treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1) exhibited highest reduction in disease index (4.92 %), increased plant growth promoting ability with plant height of 80.8 cm, increase in the no. of effective tillers (97.4 %), grain yield (5340 kg ha-1) and straw yield (6013 kg ha-1) over the untreated control. The results strongly emphasize that endophytic bacteria (EMP-5) could be efficiently used for management of bacterial leaf blight.
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Claims 10
Claim · model-written summary
Forty-five endophytic bacterial isolates were obtained from healthy rice cultivars.
- Taxon
- endophytic bacteriale0
- Interactor
- rice
Oryza sativae0host - Outcome
- isolates were isolatede0
- Value
- 45e0
- Setting
- Nellore and Chittoor districts of Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of 45 endophytic bacterial isolates were isolated from the healthy rice cultivars viz; MTU 1010, BPT 5204 and NLR 34449 cultivated in Nellore and Chittoor districts of Andhra Pradesh.”
Claim · model-written summary
Inhibition zones against the blight pathogen ranged from 0 mm to 16.8 mm.
- Taxon
- Xanthomonas oryzae pv. oryzae
Xanthomonas oryzae pv. oryzaee0 - Interactor
- endophytic bacteriale1biocontrol_agent
- Outcome
- diameter of inhibition zone formatione0
- Value
- 0 mm to 16.8 mme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae by agar well diffusion method. The diameter of inhibition zone formation ranged from 0 mm to 16.8 mm.”
e1“All the isolated endophytic bacterial isolates”
Claim · model-written summary
EMP-5 showed the highest antagonism with a 16.8 mm inhibition zone.
- Taxon
- Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaee1
- Treatment
- EMP-5e0
- Interactor
- EMP-5e0biocontrol_agent
- Outcome
- inhibition zonee0
- Direction
- higheste0
- Value
- 16.8 mme0
- Comparator
- 45 isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among 45 isolates, EMP-5 and EBK-3 isolates showed highest antagonistic effect with inhibition zone of 16.8 mm and 16.6 mm, respectively.”
e1“bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae”
Claim · model-written summary
EBK-3 showed highest antagonism with a 16.6 mm inhibition zone.
- Taxon
- Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaee1
- Treatment
- EBK-3e0
- Interactor
- EBK-3e0biocontrol_agent
- Outcome
- inhibition zonee0
- Direction
- higheste0
- Value
- 16.6 mme0
- Comparator
- 45 isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among 45 isolates, EMP-5 and EBK-3 isolates showed highest antagonistic effect with inhibition zone of 16.8 mm and 16.6 mm, respectively.”
e1“bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae”
Claim · model-written summary
T5 EMP-5 seed and foliar treatment produced the highest disease-index reduction, reported as 4.92%.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1e0
- Interactor
- Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaee2pathogen
- Second interactor
- EMP-5e0biocontrol_agent
- Outcome
- disease indexe0
- Direction
- highest reductione0
- Value
- 4.92 %e0
- Comparator
- untreated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1) exhibited highest reduction in disease index (4.92 %)”
e1“over the untreated control”
t0“rice”
e2“bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae”
Claim · model-written summary
T5 increased rice growth with plant height of 80.8 cm.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1e0
- Interactor
- EMP-5e0biocontrol_agent
- Outcome
- plant heighte1
- Direction
- increasede1
- Value
- 80.8 cme1
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1)”
e1“increased plant growth promoting ability with plant height of 80.8 cm”
e2“over the untreated control”
t0“rice”
Claim · model-written summary
T5 increased effective tillers by the reported 97.4% over control.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1e0
- Interactor
- EMP-5e0biocontrol_agent
- Outcome
- no. of effective tillerse1
- Direction
- increasee1
- Value
- 97.4 %e1
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1)”
e1“increase in the no. of effective tillers (97.4 %)”
e2“over the untreated control”
t0“rice”
Claim · model-written summary
T5 increased rice grain yield to 5340 kg ha-1 over control.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1e0
- Interactor
- EMP-5e0biocontrol_agent
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 5340 kg ha-1e1
- Comparator
- untreated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1)”
e1“increase in the no. of effective tillers (97.4 %), grain yield (5340 kg ha-1) and straw yield (6013 kg ha-1) over the untreated control”
t0“rice”
Claim · model-written summary
T5 increased rice straw yield to 6013 kg ha-1 over control.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1e0
- Interactor
- EMP-5e0biocontrol_agent
- Outcome
- straw yielde1
- Direction
- increasee1
- Value
- 6013 kg ha-1e1
- Comparator
- untreated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1)”
e1“increase in the no. of effective tillers (97.4 %), grain yield (5340 kg ha-1) and straw yield (6013 kg ha-1) over the untreated control”
t0“rice”
Claim · model-written summary
The authors recommend EMP-5 endophytic bacteria for bacterial leaf blight management.
- Taxon
- riceOryza sativat0
- Treatment
- endophytic bacteria (EMP-5)e0
- Interactor
- endophytic bacteria (EMP-5)e0biocontrol_agent
- Outcome
- management of bacterial leaf blighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results strongly emphasize that endophytic bacteria (EMP-5) could be efficiently used for management of bacterial leaf blight.”
t0“rice”
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