Abstract
The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings. Total water flow through infected root parts was significantly lower than through comparable uninfected parts. Total water uptake was correlated with total length of the root system. In a root system severed from its stem and placed under a partial vacuum applied at the stem stump, the infected half transported significantly less water than its corresponding uninfected half. In perfusion chambers, infected apical, but not basal, root segments transported less water than adjacent uninfected segments. Axial resistance to water movement in galls at the root apex, but not at the base, increased. Cross sections of galls at the root base showed little effect on vascular continuity, but in terminal galls the number and diameter of xylem vessels were reduced.
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Claims 7
Claim · model-written summary
Total water flow through Meloidogyne incognita-infected root parts was lower than through uninfected parts.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Meloidogyne incognitae0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pest - Outcome
- Total water flowe1
- Direction
- lowere1
- Comparator
- comparable uninfected partse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e1“Total water flow through infected root parts was significantly lower than through comparable uninfected parts”
Claim · model-written summary
Total water uptake was correlated with total length of the root system; the direction of the correlation is not stated.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- root systeme2
- Outcome
- Total water uptakee2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e2“Total water uptake was correlated with total length of the root system”
Claim · model-written summary
In a severed root system, the infected half transported significantly less water than its uninfected half.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- infected halfe3
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- transported significantly less watere3
- Direction
- lesse3
- Comparator
- its corresponding uninfected halfe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e3“In a root system severed from its stem and placed under a partial vacuum applied at the stem stump, the infected half transported significantly less water than its corresponding uninfected half”
Claim · model-written summary
In perfusion chambers, infected apical root segments transported less water than adjacent uninfected segments, but infected basal segments did not.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- apicale4
- Treatment
- infected apicale4
- Outcome
- transported less watere4
- Direction
- lesse4
- Qualifier
- but not basale4
- Comparator
- adjacent uninfected segmentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e4“In perfusion chambers, infected apical, but not basal, root segments transported less water than adjacent uninfected segments”
Claim · model-written summary
Axial resistance to water movement increased in galls at the root apex but not at the base.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- galls at the root apexe5
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- Axial resistance to water movemente5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e5“Axial resistance to water movement in galls at the root apex, but not at the base, increased”
Claim · model-written summary
Cross sections of galls at the root base showed little effect on vascular continuity.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- galls at the root basee6
- Outcome
- vascular continuitye6
- Qualifier
- showed little effecte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e6“Cross sections of galls at the root base showed little effect on vascular continuity, but in terminal galls the number and diameter of xylem vessels were reduced”
Claim · model-written summary
In terminal galls, the number and diameter of xylem vessels were reduced.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- terminal gallse6
- Outcome
- number and diameter of xylem vesselse6
- Direction
- reducede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Meloidogyne incognita on water flow in tomato roots was investigated in rooted split-stem cuttings”
e6“Cross sections of galls at the root base showed little effect on vascular continuity, but in terminal galls the number and diameter of xylem vessels were reduced”
The same questions in other papers
infection · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results
9 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
15 papers more in this group
See all 19 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.