Paper · 1984 · Journal of Applied Bacteriology

Effects of microbial colonization of barley (Hovdeum vulgare L.) roots on seedling growth

J.M. Lynch; Sarah J. Clark

5
claims
12
verbatim quotes
26
citations
1
research areas
—
Not open access

Abstract

L ynch J.M. & C lark S arah J. 1984. Ejects of microbial colonization of barley ( Hordeum vulgare L.) roots on seedling growth. Journal of Applied Bacteriology 56 , 47–52. A range of micro‐organisms, particularly pseudomonads, was isolated from seed, rhizosphere soil and straw. Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied. The colonization potentials of the different species were between 004 and 47 times 10 6 viable cells/mg dry root. Some organisms stimulated root and shoot extension and dry matter production while others were inhibitory; these effects were not directly related to the colonization potentials.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Some micro-organisms stimulated barley root and shoot extension and dry matter production

Treatment
microbial colonizationt0
Outcome
root and shoot extension and dry matter productione2
Direction
stimulatede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied”

✓ located verbatim in the source · abstract, characters 279–379 · show in text ↑
e2

“Some organisms stimulated root and shoot extension and dry matter production while others were inhibitory”

✓ located verbatim in the source · abstract, characters 495–600 · show in text ↑
t0

“microbial colonization of barley”

✓ located verbatim in the source · title, characters 11–43 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Some micro-organisms inhibited barley seedling growth

Treatment
microbial colonizationt0
Outcome
growth of barley seedlingse1
Direction
inhibitorye2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied”

✓ located verbatim in the source · abstract, characters 279–379 · show in text ↑
e2

“Some organisms stimulated root and shoot extension and dry matter production while others were inhibitory”

✓ located verbatim in the source · abstract, characters 495–600 · show in text ↑
t0

“microbial colonization of barley”

✓ located verbatim in the source · title, characters 11–43 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Effects of colonizing micro-organisms on barley growth were not directly related to their colonization potentials

Treatment
colonizatione1
Outcome
these effectse3
Direction
not directly relatede3
Comparator
colonization potentialse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied”

✓ located verbatim in the source · abstract, characters 279–379 · show in text ↑
e3

“these effects were not directly related to the colonization potentials”

✓ located verbatim in the source · abstract, characters 602–672 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Colonization potentials of the micro-organisms on barley roots were between 0.04 and 4.7 x 10^6 viable cells per mg dry root

Outcome
colonization potentialse4
Value
between 004 and 47 times 10 6 viable cells/mg dry roote4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied”

✓ located verbatim in the source · abstract, characters 279–379 · show in text ↑
e4

“The colonization potentials of the different species were between 004 and 47 times 10 6 viable cells/mg dry root”

✓ located verbatim in the source · abstract, characters 381–493 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A range of micro-organisms, particularly pseudomonads, was isolated from barley seed, rhizosphere soil and straw

Interactor
pseudomonadse0other
Outcome
was isolatede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A range of micro‐organisms, particularly pseudomonads, was isolated from seed, rhizosphere soil and straw”

✓ located verbatim in the source · abstract, characters 172–277 · show in text ↑
e1

“Their colonization and effects on the growth of barley seedlings in gnotobiotic culture were studied”

✓ located verbatim in the source · abstract, characters 279–379 · show in text ↑

infection · growth · Hordeum vulgare (barley)Positive and negative results

16 papers: 2 positive, 14 negative or no effect

13 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative

12 papers more in this group

See all 16 papers →

infection · yield · Hordeum vulgare (barley)Positive and negative results

22 papers: 7 positive, 15 negative or no effect

6 papers in the same direction as this paper · 15 in the opposite direction

  1. negative
  2. negative
  3. 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.