Abstract
BACKGROUND AND AIMS: The use of grafted plants in vegetable crop production is now being expanded greatly. However, few data are available on the formation of graft unions in vegetables. In this work, the structural development of the graft union formation in tomato plants is studied, together with the possible relationship with activities of peroxidases and catalases. METHODS: Tomato (Lycopersicon esculentum Mill.) seedlings of cultivar Fanny were grafted on the rootstock of cultivar AR-9704 using the 'tongue approach grafting' method, and were grown in a crop chamber. A study of the structural development of the graft union and the involvement of peroxidases and catalases in the process of graft formation was carried out during the first stages of the graft union (4, 8 and 15 d after grafting). KEY RESULTS: Observation of the structure of the graft union showed formation of xylem and phloem vessels through the graft union 8 d after grafting. In addition, root hydraulic conductance, L0, indicate that the graft union is fully functional 8 d after grafting, which coincided with an increase of peroxidase and catalase activities. CONCLUSIONS: These results suggest that increased peroxidase and catalase activities might be implicated in graft development in tomato plants.
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Claims 4
Claim · model-written summary
Xylem and phloem vessels formed through tomato graft unions eight days after grafting.
- Taxon
- Tomato
Solanum lycopersicumt0 - Organ / stage
- graft unione0
- Outcome
- formation of xylem and phloem vesselse0
- Qualifier
- 8 d after graftinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“formation of xylem and phloem vessels through the graft union 8 d after grafting”
t0“Graft Union Formation in Tomato Plants: Peroxidase and Catalase Involvement”
Claim · model-written summary
Root hydraulic conductance indicated fully functional graft unions eight days after grafting.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- graft unione0
- Outcome
- root hydraulic conductancee0
- Qualifier
- 8 d after graftinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root hydraulic conductance, L0, indicate that the graft union is fully functional 8 d after grafting”
t0“Graft Union Formation in Tomato Plants: Peroxidase and Catalase Involvement”
Claim · model-written summary
Peroxidase and catalase activities increased when tomato graft unions became functional.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- peroxidase and catalase activitiese0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“coincided with an increase of peroxidase and catalase activities”
t0“Graft Union Formation in Tomato Plants: Peroxidase and Catalase Involvement”
Claim · model-written summary
The authors suggest increased peroxidase and catalase activities may contribute to tomato graft development.
- Taxon
- tomato plantsSolanum lycopersicume0
- Gene
- peroxidase and catalasee0
- Outcome
- graft developmente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased peroxidase and catalase activities might be implicated in graft development in tomato plants”