Abstract
Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate (1.0 mM for 24 h prior to inoculation). The glyphosate-induced colonization was associated with an inefficiency in incorporation of phenolic materials into the papillae and into the modified cortical cell walls normally formed in response to this pathogen. Glyphosate-induced susceptibility decreased when the glyphosate was applied at 24 or 48 h after inoculation. Plants supplied with exogenous L-phenylalanine failed to exhibit reduced susceptibility after glyphosate exposure. In radial growth bioassays, growth of the fungus was unaffected by 4.0 mM glyphosate. α-Aminooxyacetic acid, an inhibitor of phenylalanine ammonia lyase, also increased the severity of the disease in resistant plants. Glyphosate also induced susceptibility to an isolate of F. solani f.sp. pisi, which was normally not pathogenic to tomato.
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Claims 7
Claim · model-written summary
Glyphosate exposure (1.0 mM for 24 h before inoculation) led to colonization of root tissues of resistant tomato seedlings by Fusarium oxysporum f.sp. radicis-lycopersici.
- Taxon
- tomato
Solanum lycopersicume1 - Material
- genetically resistante1
- Organ / stage
- root tissuese1
- Treatment
- sublethal concentration of the herbicide glyphosate (1.0 mM for 24 h prior to inoculation)e1
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersici
Fusarium oxysporum f. sp. radicis-lycopersicie1pathogen - Outcome
- Colonization of root tissuese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate (1.0 mM for 24 h prior to inoculation)”
Claim · model-written summary
Glyphosate-induced colonization was associated with inefficient incorporation of phenolic materials into papillae and modified cortical cell walls.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- glyphosatee2
- Outcome
- incorporation of phenolic materials into the papillae and into the modified cortical cell wallse2
- Qualifier
- inefficiency in incorporatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate”
e2“The glyphosate-induced colonization was associated with an inefficiency in incorporation of phenolic materials into the papillae and into the modified cortical cell walls normally formed in response to this pathogen”
Claim · model-written summary
Glyphosate applied 24 or 48 h after inoculation decreased glyphosate-induced susceptibility of tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- glyphosate was applied at 24 or 48 h after inoculatione3
- Outcome
- Glyphosate-induced susceptibilitye3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate”
e3“Glyphosate-induced susceptibility decreased when the glyphosate was applied at 24 or 48 h after inoculation”
Claim · model-written summary
Exogenous L-phenylalanine did not reduce tomato susceptibility after glyphosate exposure.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- exogenous L-phenylalaninee4
- Outcome
- susceptibilitye4
- Direction
- failed to exhibit reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate”
e4“Plants supplied with exogenous L-phenylalanine failed to exhibit reduced susceptibility after glyphosate exposure”
Claim · model-written summary
Glyphosate at 4.0 mM did not affect in vitro radial growth of the fungus.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 4.0 mM glyphosatee5
- Interactor
- funguse5pathogen
- Outcome
- growth of the funguse5
- Direction
- unaffectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate”
e5“In radial growth bioassays, growth of the fungus was unaffected by 4.0 mM glyphosate”
Claim · model-written summary
The phenylalanine ammonia lyase inhibitor alpha-aminooxyacetic acid increased disease severity in resistant tomato plants.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- resistant plantse6
- Treatment
- α-Aminooxyacetic acide6
- Gene
- phenylalanine ammonia lyasee6
- Outcome
- severity of the diseasee6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Colonization of root tissues in tomato seedlings genetically resistant to Fusarium oxysporum f.sp. radicis-lycopersici Jarvis & Shoemaker occurred following exposure to a sublethal concentration of the herbicide glyphosate”
e6“α-Aminooxyacetic acid, an inhibitor of phenylalanine ammonia lyase, also increased the severity of the disease in resistant plants”
Claim · model-written summary
Glyphosate also induced susceptibility of tomato to an isolate of F. solani f.sp. pisi, which is normally not pathogenic to tomato.
- Taxon
- tomatoSolanum lycopersicume7
- Treatment
- Glyphosatee7
- Interactor
- F. solani f.sp. pisiFusarium vanetteniie7pathogen
- Outcome
- susceptibility to an isolate of F. solani f.sp. pisie7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Glyphosate also induced susceptibility to an isolate of F. solani f.sp. pisi, which was normally not pathogenic to tomato”
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- negative
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inoculation · disease · Solanum lycopersicum (tomato)Positive and negative results
135 papers in the same direction as this paper · 128 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
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See all 266 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.