Abstract
A plant growth-promoting rhizobacterium, designated Ps JN and isolated from onion roots, was identified as a nonfluorescent Pseudomonas sp. The percentage of similarity of Ps JN to P. gladioli (NCPPB 1891), P. cichorii (NCPPB 943), and P. viridiflava (NCPPB 635), as determined from 135 biochemical and physiological tests was 77, 70, and 66%, respectively. Ps JN persisted through successive generations of in vitro cultured potato plantlets, both as endophytic and epiphytic populations. In vitro inoculated potato (Solanum tuberosum) nodal explants produced plantlets with significant increases in root number (24-196%), root dry weight (44-201%), haulm dry weight (14-151%), and stem length (26-28%) as compared with noninoculated control plants. Bacterization also enhanced leaf hair formation (55-110%), secondary root branching, and total plant lignin content (43%). Other root colonizing bacteria or heat-killed cells of Ps JN had no significant effect on plant growth. Detached leaves from in vitro grown control plants, when exposed to 19 degrees C and 50% relative humidity, lost 55% of their moisture content in 2.5 hours. Moisture loss by leaves of in vitro grown, bacterized plants, as well as greenhouse-acclimated, bacterized plants, and control plants, was less than 20%. Changes in stomatal closure appear to account for this difference.
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Claims 17
Claim · model-written summary
Ps JN was identified as a nonfluorescent Pseudomonas species.
- Taxon
- onion
Allium cepae0 - Interactor
- Pseudomonas sp.
Pseudomonase0symbiont - Outcome
- identified as a nonfluorescent Pseudomonas sp.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A plant growth-promoting rhizobacterium, designated Ps JN and isolated from onion roots, was identified as a nonfluorescent Pseudomonas sp.”
Claim · model-written summary
Ps JN similarity to P. gladioli was 77%.
- Taxon
- Potato
Solanum tuberosumt0 - Interactor
- Ps JNe0symbiont
- Outcome
- percentage of similaritye0
- Value
- 77e0
- Comparator
- P. gladiolie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of similarity of Ps JN to P. gladioli (NCPPB 1891), P. cichorii (NCPPB 943), and P. viridiflava (NCPPB 635), as determined from 135 biochemical and physiological tests was 77, 70, and 66%, respectively”
t0“Potato”
Claim · model-written summary
Ps JN similarity to P. cichorii was 70%.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- Ps JNe0symbiont
- Outcome
- percentage of similaritye0
- Value
- 70e0
- Comparator
- P. cichoriie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of similarity of Ps JN to P. gladioli (NCPPB 1891), P. cichorii (NCPPB 943), and P. viridiflava (NCPPB 635), as determined from 135 biochemical and physiological tests was 77, 70, and 66%, respectively”
t0“Potato”
Claim · model-written summary
Ps JN similarity to P. viridiflava was 66%.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- Ps JNe0symbiont
- Outcome
- percentage of similaritye0
- Value
- 66%e0
- Comparator
- P. viridiflavae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of similarity of Ps JN to P. gladioli (NCPPB 1891), P. cichorii (NCPPB 943), and P. viridiflava (NCPPB 635), as determined from 135 biochemical and physiological tests was 77, 70, and 66%, respectively”
t0“Potato”
Claim · model-written summary
Ps JN persisted as endophytic and epiphytic populations across successive in vitro potato generations.
- Taxon
- potatoSolanum tuberosume0
- Interactor
- Ps JNe0symbiont
- Outcome
- persisted through successive generationse0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ps JN persisted through successive generations of in vitro cultured potato plantlets, both as endophytic and epiphytic populations”
Claim · model-written summary
Inoculation increased potato root number by 24-196%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- inoculatede0
- Interactor
- Ps JNe1symbiont
- Outcome
- root numbere0
- Direction
- increasese0
- Value
- 24-196%e0
- Comparator
- noninoculated control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro inoculated potato (Solanum tuberosum) nodal explants produced plantlets with significant increases in root number (24-196%), root dry weight (44-201%), haulm dry weight (14-151%), and stem length (26-28%) as compared with noninoculated control plants”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Inoculation increased potato root dry weight by 44-201%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- inoculatede0
- Interactor
- Ps JNe1symbiont
- Outcome
- root dry weighte0
- Direction
- increasese0
- Value
- 44-201%e0
- Comparator
- noninoculated control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro inoculated potato (Solanum tuberosum) nodal explants produced plantlets with significant increases in root number (24-196%), root dry weight (44-201%), haulm dry weight (14-151%), and stem length (26-28%) as compared with noninoculated control plants”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Inoculation increased potato haulm dry weight by 14-151%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- inoculatede0
- Interactor
- Ps JNe1symbiont
- Outcome
- haulm dry weighte0
- Direction
- increasese0
- Value
- 14-151%e0
- Comparator
- noninoculated control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro inoculated potato (Solanum tuberosum) nodal explants produced plantlets with significant increases in root number (24-196%), root dry weight (44-201%), haulm dry weight (14-151%), and stem length (26-28%) as compared with noninoculated control plants”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Inoculation increased potato stem length by 26-28%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- inoculatede0
- Interactor
- Ps JNe1symbiont
- Outcome
- stem lengthe0
- Direction
- increasese0
- Value
- 26-28%e0
- Comparator
- noninoculated control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro inoculated potato (Solanum tuberosum) nodal explants produced plantlets with significant increases in root number (24-196%), root dry weight (44-201%), haulm dry weight (14-151%), and stem length (26-28%) as compared with noninoculated control plants”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Bacterization enhanced leaf hair formation by 55-110%.
- Taxon
- potatoSolanum tuberosume1
- Treatment
- Bacterizatione0
- Interactor
- Ps JNe1symbiont
- Outcome
- leaf hair formatione0
- Direction
- enhancede0
- Value
- 55-110%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterization also enhanced leaf hair formation (55-110%), secondary root branching, and total plant lignin content (43%)”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Bacterization enhanced secondary root branching.
- Taxon
- potatoSolanum tuberosume1
- Treatment
- Bacterizatione0
- Interactor
- Ps JNe1symbiont
- Outcome
- secondary root branchinge0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterization also enhanced leaf hair formation (55-110%), secondary root branching, and total plant lignin content (43%)”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Bacterization enhanced total plant lignin content by 43%.
- Taxon
- potatoSolanum tuberosume1
- Treatment
- Bacterizatione0
- Interactor
- Ps JNe1symbiont
- Outcome
- total plant lignin contente0
- Direction
- enhancede0
- Value
- 43%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterization also enhanced leaf hair formation (55-110%), secondary root branching, and total plant lignin content (43%)”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Other root-colonizing bacteria had no significant plant-growth effect.
- Taxon
- potatoSolanum tuberosume1
- Treatment
- Other root colonizing bacteriae0
- Outcome
- plant growthe0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other root colonizing bacteria or heat-killed cells of Ps JN had no significant effect on plant growth”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Heat-killed Ps JN cells had no significant plant-growth effect.
- Taxon
- potatoSolanum tuberosume1
- Treatment
- heat-killed cells of Ps JNe0
- Interactor
- Ps JNe0symbiont
- Outcome
- plant growthe0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other root colonizing bacteria or heat-killed cells of Ps JN had no significant effect on plant growth”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Detached control leaves lost 55% moisture in 2.5 hours at 19 degrees C and 50% relative humidity.
- Taxon
- potatoSolanum tuberosume1
- Organ / stage
- Detached leavese0
- Outcome
- moisture contente0
- Value
- 55%e0
- Qualifier
- 19 degrees C and 50% relative humiditye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Detached leaves from in vitro grown control plants, when exposed to 19 degrees C and 50% relative humidity, lost 55% of their moisture content in 2.5 hours”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Bacterized and greenhouse-acclimated leaves lost under 20% moisture.
- Taxon
- potatoSolanum tuberosume1
- Outcome
- Moisture loss by leavese0
- Value
- less than 20%e0
- Setting
- greenhouse-acclimatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moisture loss by leaves of in vitro grown, bacterized plants, as well as greenhouse-acclimated, bacterized plants, and control plants, was less than 20%”
e1“Ps JN persisted through successive generations of in vitro cultured potato plantlets”
Claim · model-written summary
Stomatal closure changes appear to explain the moisture-loss difference.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- Moisture loss by leavese1
- Qualifier
- Changes in stomatal closuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in stomatal closure appear to account for this difference”
e1“Moisture loss by leaves of in vitro grown, bacterized plants, as well as greenhouse-acclimated, bacterized plants, and control plants, was less than 20%”
t0“Potato”
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