Abstract
Abstract We investigated the effects of inoculating a dicot plant, Brassica oleracea, with nitrogen-fixing endophytic bacteria isolated from monocots. The bacteria used were Enterobacter sp. strain 35 isolated from sugarcane and Herbaspirillum sp. strain B501 isolated from wild rice. Under glasshouse conditions, B. oleracea inoculated with strain 35 had a significantly greater fresh weight than uninoculated plants, and the fresh weight of plants inoculated with strain B501 tended to be higher than that of uninoculated plants. We conducted a laboratory-scale experiment to confirm the above results and to investigate the colonization and nitrogen-fixing abilities of these bacteria. Plants inoculated with Enterobacter sp. strain 35-1, a green fluorescent protein (GFP)-labeled strain derived from strain 35, had larger bacterial populations and greater acetylene reduction activity than those inoculated with Herbaspirillum sp. strain B501gfp1. Strain 35-1 colonized the intercellular spaces and the junctions of the lateral roots with the parent root. The results indicated that isolates from monocots can successfully colonize B. oleracea (a dicot) and promote plant growth.
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Claims 5
Claim · model-written summary
Under glasshouse conditions, strain 35 inoculation significantly increased B. oleracea fresh weight versus uninoculated plants.
- Taxon
- B. oleracea
Brassica oleraceae0 - Treatment
- inoculated with strain 35e0
- Interactor
- Enterobacter sp. strain 35
Enterobacter sp.e1symbiont - Outcome
- fresh weighte0
- Direction
- greatere0
- Comparator
- uninoculated plantse0
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under glasshouse conditions, B. oleracea inoculated with strain 35 had a significantly greater fresh weight than uninoculated plants”
e1“Enterobacter sp. strain 35 isolated from sugarcane”
Claim · model-written summary
Strain B501 inoculation tended to increase plant fresh weight over uninoculated plants.
- Taxon
- B. oleraceaBrassica oleraceae1
- Treatment
- inoculated with strain B501e0
- Interactor
- Herbaspirillum sp. strain B501Herbaspirillum sp.e2symbiont
- Outcome
- fresh weighte0
- Direction
- highere0
- Qualifier
- tended to bee0
- Comparator
- uninoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight of plants inoculated with strain B501 tended to be higher than that of uninoculated plants”
e1“B. oleracea inoculated”
e2“Herbaspirillum sp. strain B501 isolated from wild rice”
Claim · model-written summary
Strain 35-1 inoculation yielded larger bacterial populations than strain B501gfp1 inoculation.
- Taxon
- B. oleraceaBrassica oleraceae1
- Treatment
- inoculated with Enterobacter sp. strain 35-1e0
- Interactor
- Enterobacter sp. strain 35-1Enterobacter sp.e0symbiont
- Second interactor
- Herbaspirillum sp. strain B501gfp1Herbaspirillum sp.e0symbiont
- Outcome
- bacterial populationse0
- Direction
- largere0
- Comparator
- inoculated with Herbaspirillum sp. strain B501gfp1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants inoculated with Enterobacter sp. strain 35-1, a green fluorescent protein (GFP)-labeled strain derived from strain 35, had larger bacterial populations and greater acetylene reduction activity than those inoculated with Herbaspirillum sp. strain B501gfp1”
e1“B. oleracea inoculated”
Claim · model-written summary
Strain 35-1 inoculation yielded greater acetylene reduction activity than strain B501gfp1 inoculation.
- Taxon
- B. oleraceaBrassica oleraceae1
- Treatment
- inoculated with Enterobacter sp. strain 35-1e0
- Interactor
- Enterobacter sp. strain 35-1Enterobacter sp.e0symbiont
- Second interactor
- Herbaspirillum sp. strain B501gfp1Herbaspirillum sp.e0symbiont
- Outcome
- acetylene reduction activitye0
- Direction
- greatere0
- Comparator
- inoculated with Herbaspirillum sp. strain B501gfp1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants inoculated with Enterobacter sp. strain 35-1, a green fluorescent protein (GFP)-labeled strain derived from strain 35, had larger bacterial populations and greater acetylene reduction activity than those inoculated with Herbaspirillum sp. strain B501gfp1”
e1“B. oleracea inoculated”
Claim · model-written summary
Strain 35-1 colonized intercellular spaces and lateral root junctions.
- Taxon
- B. oleraceaBrassica oleraceae1
- Organ / stage
- lateral rootse0
- Interactor
- Strain 35-1e0symbiont
- Outcome
- colonized the intercellular spaces and the junctions of the lateral roots with the parent roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strain 35-1 colonized the intercellular spaces and the junctions of the lateral roots with the parent root”
e1“B. oleracea inoculated”
The same questions in other papers
inoculation · soil: biology · Brassica oleracea (wild cabbage)Positive and negative results
5 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →inoculation · symbiosis · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
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.