Abstract
Abstract Trace metal induced stress is an abiotic factor that limits crop yield, having the additional hazard of their accumulation along trophic chain. This fact supposes an emerging problem concerning the health of the population in the case of edible plants such as Cucurbita pepo (zucchini). Most of the plant physiological responses to this adverse situation are regulated by phytohormones, being abscisic acid (ABA) and jasmonic acid (JA) the most important ones, which biosynthesis comprises a key step in this hormone-mediated signaling. In this work, genes involved in ABA and JA biosynthesis have been searched in the zucchini genome, and their expression has been analyzed in leaves of adult plants subjected to Cd- or Ni-induced stress. The results showed the higher sensitivity of zucchini plants to Ni in comparison to Cd, with a higher phenotypic affection and a major decrease of total dry weight. The study of the expression of 12 target genes (5 related to JA biosynthesis and 7 related to ABA biosynthesis), allowed determining a similar genetic response in C. pepo to these metals. The results extend our knowledge of the role of phytohormones on trace metal stress tolerance. Among all the studied genes, the main ones involved in plant responses to trace metal stress were the ABA-related CpAAO3 , CpZEP , and CpNCED4 , as well as the JA-related CpLOX2 , CpOPR3 , CpAOS2 , and CpJAR1 . These results provide relevant information to be used in future breeding programs.
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Claims 4
Claim · model-written summary
Zucchini plants were more sensitive to Ni than Cd, with greater phenotypic effects and dry weight decrease.
- Taxon
- zucchini plants
Cucurbita pepo subsp. pepoe0 - Treatment
- Nie0
- Outcome
- total dry weighte0
- Direction
- decreasee0
- Qualifier
- higher phenotypic affectione0
- Comparator
- Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher sensitivity of zucchini plants to Ni in comparison to Cd, with a higher phenotypic affection and a major decrease of total dry weight”
Claim · model-written summary
C. pepo showed a similar genetic response to Cd and Ni among the 12 target genes.
- Taxon
- C. pepo
Cucurbita pepoe0 - Outcome
- genetic responsee0
- Direction
- similare0
- Value
- 12 target genese0
- Qualifier
- these metalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of 12 target genes (5 related to JA biosynthesis and 7 related to ABA biosynthesis), allowed determining a similar genetic response in C. pepo to these metals”
Claim · model-written summary
ABA-related CpAAO3, CpZEP, and CpNCED4 were identified as main genes involved in plant responses to trace metal stress.
- Taxon
- Cucurbita pepo L.Cucurbita pepot0
- Gene
- CpAAO3 , CpZEP , and CpNCED4e0
- Outcome
- plant responses to trace metal stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main ones involved in plant responses to trace metal stress were the ABA-related CpAAO3 , CpZEP , and CpNCED4”
t0“Cucurbita pepo L.”
Claim · model-written summary
JA-related CpLOX2, CpOPR3, CpAOS2, and CpJAR1 were identified as main genes involved in plant responses to trace metal stress.
- Taxon
- Cucurbita pepo L.Cucurbita pepot0
- Gene
- CpLOX2 , CpOPR3 , CpAOS2 , and CpJAR1e0
- Outcome
- plant responses to trace metal stresse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the JA-related CpLOX2 , CpOPR3 , CpAOS2 , and CpJAR1”
t0“Cucurbita pepo L.”
e1“main ones involved in plant responses to trace metal stress”
The same questions in other papers
nickel atom · growth · Cucurbita pepoPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- 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.