Abstract
Salt stress and waterlogging are two of the most common abiotic stresses in nature, often occurring concurrently. However, our understanding of the mechanisms underlying responses of plants to a combination of these stresses remains limited. In this study, we investigated growth, physiological and biochemical responses of Solanum lycopersicum cv. Micro-Tom to salt stress, waterlogging and the combination of both. Under waterlogging individually, plants showed increased plant height and longer root length. However, they exhibited a significantly smaller leaf area, fewer leaves, reduced fresh and dry weights, and lower relative water content compared to plants grown under controlled conditions. These effects were more severe than those caused by salt stress alone. Interestingly, the growth inhibition from waterlogging was alleviated under combined salt and waterlogging stress. This attenuation may be associated with decreased accumulation of H₂O₂ and oxidized lipids, along with increased proline and photosynthetic pigment contents compared with waterlogging individually applied. However, ROS accumulations and contents of photosynthetic pigments were not straightforwardly linked to the activity of photosynthesis. In addition, activities of various antioxidant enzymes such as CAT, GPX and GST as well as those involved in the AsA-GSH cycle were differently altered by salt stress and waterlogging, individually and in combination. Taken together, these results suggest that the response of tomato plants to salt stress and waterlogging, individually and in combination, can be differently modulated via fine-tuning of acclimation mechanisms to oxidative stress.
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 8
Claim · model-written summary
Waterlogging alone increased plant height and root length.
Solanum lycopersicumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under waterlogging individually, plants showed increased plant height and longer root length”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Waterlogging alone significantly reduced leaf area, leaf number, fresh and dry weights, and relative water content.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they exhibited a significantly smaller leaf area, fewer leaves, reduced fresh and dry weights, and lower relative water content compared to plants grown under controlled conditions”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Waterlogging effects were more severe than salt stress alone.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These effects were more severe than those caused by salt stress alone”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Combined salt and waterlogging alleviated waterlogging growth inhibition.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth inhibition from waterlogging was alleviated under combined salt and waterlogging stress”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Combined stress decreased H₂O₂ and oxidized lipid accumulation relative to waterlogging alone.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased accumulation of H₂O₂ and oxidized lipids”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Combined stress increased proline and photosynthetic pigments relative to waterlogging alone.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased proline and photosynthetic pigment contents compared with waterlogging individually applied”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
ROS and photosynthetic pigment levels were not straightforwardly linked to photosynthetic activity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ROS accumulations and contents of photosynthetic pigments were not straightforwardly linked to the activity of photosynthesis”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
Claim · model-written summary
Antioxidant enzyme activities differed across salt, waterlogging and combined stress.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of various antioxidant enzymes such as CAT, GPX and GST as well as those involved in the AsA-GSH cycle were differently altered by salt stress and waterlogging, individually and in combination”
t0“A combination of salt stress and waterlogging provides protection to tomato plants against the negative effects of waterlogging individually applied”
e1“Solanum lycopersicum cv. Micro-Tom”
e2“plants grown under controlled conditions”
e3“waterlogging individually applied”
The same questions in other papers
flooding · disease · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →salinity · disease · Solanum lycopersicum (tomato)Positive and negative results
11 papers in the same direction as this paper · 13 in the opposite direction
- negative
- negative
- negative
21 papers more in this group
See all 25 papers →flooding · physiology: water · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- no effect
- negative
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.