Abstract
Abiotic stress factors are among the major causes of lower crop yields. It is known, that in response to cold and/or osmotic stress, crops activate various defense mechanisms, including morphological, physiological and metabolic adaptations. Secondary metabolism, especially phenolic compounds, seem to be an important factor of stress-induced metabolic re-engineering as their levels are alternated by abiotic stress in plants. Despite the fact, that the nature and function of phenolic compounds was already studied in various plant species, it is important to define tissue-specific changes induced by two most potent abiotic stressors – low temperature and decreased water potential. Moreover, in fields, the appearance of single stress is rather rare. Usually two or more factors are acting in parallel, which may potentially result in different effects. Therefore, the aim of this study was to analyze selected elements of secondary metabolism in roots of germinating soybean seeds under cold stress, osmotic stress and both stresses combined. In addition the effects of constant and persistent stress were compared to those induced by sudden and brief stress appearance, as well as after the post-stress recovery process. In the presented study standard methods for identification and quantification of phenolic acids and isoflavones were used and the antioxidant capacity of the radicle extracts was measured. The phenolic metabolism in plants was greatly intensified in response to cold and osmotic stress and remained at high level during the post-stress recovery. The amount and composition of both phenolic acids and identified isoflavones also changed in stress- and duration-dependent manner. This proves an important role of phenolic compounds in abiotic stress response of germinating soybean seeds and opens up new perspectives for further investigations.
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Claims 5
Claim · model-written summary
Cold stress intensified phenolic metabolism in germinating soybean.
- Taxon
- soybean
Glycine maxt0 - Treatment
- colde0
- Outcome
- phenolic metabolisme0
- Direction
- intensifiede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenolic metabolism in plants was greatly intensified in response to cold and osmotic stress and remained at high level during the post-stress recovery”
t0“soybean germination”
Claim · model-written summary
Osmotic stress intensified phenolic metabolism in germinating soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- osmotic stresse0
- Outcome
- phenolic metabolisme0
- Direction
- intensifiede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenolic metabolism in plants was greatly intensified in response to cold and osmotic stress and remained at high level during the post-stress recovery”
t0“soybean germination”
Claim · model-written summary
Phenolic metabolism remained high during post-stress recovery.
- Taxon
- soybeanGlycine maxt0
- Outcome
- phenolic metabolisme0
- Direction
- remained at high levele0
- Qualifier
- during the post-stress recoverye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenolic metabolism in plants was greatly intensified in response to cold and osmotic stress and remained at high level during the post-stress recovery”
t0“soybean germination”
Claim · model-written summary
Phenolic acid amount and composition changed with stress and duration.
- Taxon
- soybeanGlycine maxt0
- Outcome
- amount and composition of both phenolic acidse0
- Direction
- changede0
- Qualifier
- stress- and duration-dependent mannere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount and composition of both phenolic acids and identified isoflavones also changed in stress- and duration-dependent manner”
t0“soybean germination”
Claim · model-written summary
Isoflavone amount and composition changed with stress and duration.
- Taxon
- soybeanGlycine maxt0
- Outcome
- identified isoflavonese0
- Direction
- changede0
- Qualifier
- stress- and duration-dependent mannere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount and composition of both phenolic acids and identified isoflavones also changed in stress- and duration-dependent manner”
t0“soybean germination”
The same questions in other papers
cold · quality: phytochemicals · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- negative
drought · quality: phytochemicals · Glycine max (soybean)Positive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
5 papers more in this group
See all 9 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.