Abstract
Plant catalases exhibit spatial and temporal distribution of their activity. Moreover, except from the typical monofunctional catalase, a bifunctional catalase-peroxidase has been reported. The aim of this study was to investigate whether the leaf and root catalases from six different plant species (Lactuca sativa, Cichorium endivia, Apium graveolens, Petroselinum crispum, Lycopersicon esculentum, and Solanum melongena) correspond to the monofunctional or the bifunctional type based on their sensitivity to the inhibitor 3-amino-1,2,4-triazole (3-AT). The leaf catalases from all species seem to be monofunctional since they are very sensitive to 3-AT. On the other hand, the root enzymes from Lactuca sativa, Cichorium endivia, Lycopersicon esculentum, and Solanum melongena seem to be bifunctional catalase-peroxidases, considering that they are relatively insensitive to 3-AT, whereas the catalases from Apium graveolens and Petroselinum crispum display the same monofunctional characteristics as the leaves’ enzymes. The leaf catalase activity is usually higher (Lactuca sativa, Petroselinum crispum, and Solanum melongena) or similar (Cichorium endivia and Apium graveolens) to the root one, except for the enzyme from Lycopersicon esculentum, while in all plant species the leaf protein concentration is significantly higher than the root protein concentration. These results suggest that there are differences between leaf and root catalases—differences that may correspond to their physiological role.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Leaf catalases of all six species appeared monofunctional because they were very sensitive to 3-AT.
Verbatim
e0“The leaf catalases from all species seem to be monofunctional since they are very sensitive to 3-AT.”
Claim · model-written summary
Root catalases of Lactuca sativa, Cichorium endivia, Lycopersicon esculentum and Solanum melongena appeared bifunctional, being relatively insensitive to 3-AT.
- Taxon
- Lactuca sativa, Cichorium endivia, Lycopersicon esculentum, and Solanum melongena
Solanum lycopersicum
Solanum melongena
Lactuca sativa.jpg?width=60)
Cichorium endiviae0 - Organ / stage
- roote0
- Treatment
- 3-ATe0
- Gene
- root enzymese0
- Outcome
- bifunctional catalase-peroxidasese0
- Direction
- relatively insensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the root enzymes from Lactuca sativa, Cichorium endivia, Lycopersicon esculentum, and Solanum melongena seem to be bifunctional catalase-peroxidases, considering that they are relatively insensitive to 3-AT”
Claim · model-written summary
Root catalases of Apium graveolens and Petroselinum crispum showed monofunctional characteristics like leaf catalases.
- Taxon
- Apium graveolens and Petroselinum crispum
Petroselinum crispum%2C_Elswick%2C_Northumberland_4.jpg?width=60)
Apium graveolense0 - Organ / stage
- leavese0
- Gene
- catalasese0
- Outcome
- monofunctional characteristicse0
- Comparator
- leaves’ enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
%2C_Elswick%2C_Northumberland_4.jpg?width=500)
Verbatim
e0“the catalases from Apium graveolens and Petroselinum crispum display the same monofunctional characteristics as the leaves’ enzymes”
Claim · model-written summary
Leaf catalase activity was usually higher than root activity in Lactuca sativa, Petroselinum crispum and Solanum melongena.
- Taxon
- Lactuca sativa, Petroselinum crispum, and Solanum melongenaPetroselinum crispumSolanum melongenaLactuca sativae0
- Organ / stage
- leafe0
- Gene
- catalasee0
- Outcome
- catalase activitye0
- Direction
- highere0
- Comparator
- roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf catalase activity is usually higher (Lactuca sativa, Petroselinum crispum, and Solanum melongena) or similar (Cichorium endivia and Apium graveolens) to the root one”
Claim · model-written summary
Leaf catalase activity was similar to root activity in Cichorium endivia and Apium graveolens.
- Taxon
- Cichorium endivia and Apium graveolensApium graveolensCichorium endiviae0
- Organ / stage
- leafe0
- Gene
- catalasee0
- Outcome
- catalase activitye0
- Direction
- similare0
- Comparator
- roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf catalase activity is usually higher (Lactuca sativa, Petroselinum crispum, and Solanum melongena) or similar (Cichorium endivia and Apium graveolens) to the root one”
Claim · model-written summary
Leaf protein concentration was significantly higher than root protein concentration in all studied species.
Verbatim
e0“in all plant species the leaf protein concentration is significantly higher than the root protein concentration”