Abstract
Dihydroporphyrin iron (III) chelates (also known as DHFe) have a role in plant growth regulation under normal and stressful conditions.In the present study, using Glycine max cultivars Jackson (the salt-sensitive) and Lee68 (the salt-tolerant) as the experimental materials, the physiological and molecular events contributing to the ameliorative effects of foliar DHFe spray on seedling growth; leaf photosynthetic parameters; reactive oxygen species (ROS) content; antioxidant enzyme activity; Na + , K +, and Cl -contents; and seed traits of soybean plants under control or salt-stressed conditions were investigated.The results showed that foliar spraying DHFe solution on soybean seedlings under NaCl treatment can significantly increase the leaf osmotic potential (ψs) and relative water content (RWC); reduce the Na + and Cl -contents and Na + /K + ratio; and simultaneously enhance the leaf antioxidant enzymes (CAT and APX, POD and SOD) activity, together with the mitigated ROS damage (lower H 2 O 2 and MDA contents).Thus, it can apparently restore the salt stress-inhibited growth and photosynthetic capacity of Jackson and Lee68 seedlings, of which the salt-sensitive cv.Jackson displayed more pronounced effects.This may be related to the fact that, except for DHFe as a kind of antioxidant, foliar application of DHFe could enhance the transcription levels of GmCLC1 in roots and leaves and those of GmSOS1 in roots of Jackson plants under salt stress.When continuously cultivated to maturity, foliar spraying DHFe under salt stress could improve, to a certain extent, the seed traits (including the numbers of pods and seeds and seeds dry weight per plant) of both soybean cultivars.This approach may also provide a valuable theoretical basis and technical guidance for future practical application of DHFe as a type of plant growth promoter for the chemical regulation of foliar DHFe spray in mitigating salt injury to soybean and other crops under saline cultivation conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 10
Claim · model-written summary
DHFe spray increased leaf osmotic potential and relative water content under NaCl.
- Taxon
- soybean
Glycine maxe0 - Treatment
- foliar spraying DHFe solutione0
- Outcome
- leaf osmotic potential (ψs) and relative water content (RWC)e0
- Direction
- increasee0
- Comparator
- NaCl treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar spraying DHFe solution on soybean seedlings under NaCl treatment can significantly increase the leaf osmotic potential (ψs) and relative water content (RWC)”
Claim · model-written summary
DHFe spray reduced leaf sodium and chloride contents and the sodium to potassium ratio under NaCl.
- Taxon
- soybeanGlycine maxt0
- Treatment
- foliar spraying DHFe solutione1
- Outcome
- Na + and Cl -contents and Na + /K + ratioe0
- Direction
- reducee0
- Comparator
- NaCl treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduce the Na + and Cl -contents and Na + /K + ratio”
t0“soybean”
e1“foliar spraying DHFe solution on soybean seedlings under NaCl treatment”
Claim · model-written summary
DHFe spray enhanced leaf CAT, APX, POD, and SOD activity under NaCl.
- Taxon
- soybeanGlycine maxt0
- Treatment
- foliar spraying DHFe solutione1
- Outcome
- leaf antioxidant enzymes (CAT and APX, POD and SOD) activitye0
- Direction
- enhancee0
- Comparator
- NaCl treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhance the leaf antioxidant enzymes (CAT and APX, POD and SOD) activity”
t0“soybean”
e1“foliar spraying DHFe solution on soybean seedlings under NaCl treatment”
Claim · model-written summary
DHFe spray lowered H2O2 and MDA contents under NaCl.
- Taxon
- soybeanGlycine maxt0
- Treatment
- foliar spraying DHFe solutione1
- Outcome
- H 2 O 2 and MDA contentse0
- Direction
- lowere0
- Comparator
- NaCl treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mitigated ROS damage (lower H 2 O 2 and MDA contents)”
t0“soybean”
e1“foliar spraying DHFe solution on soybean seedlings under NaCl treatment”
Claim · model-written summary
DHFe spray restored salt-inhibited growth and photosynthetic capacity in Jackson.
- Taxon
- soybeanGlycine maxt0
- Material
- Jacksone0
- Treatment
- foliar spraying DHFe solutione1
- Outcome
- growth and photosynthetic capacitye0
- Direction
- restoree0
- Comparator
- salt stress-inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“restore the salt stress-inhibited growth and photosynthetic capacity of Jackson and Lee68 seedlings”
t0“soybean”
e1“foliar spraying DHFe solution on soybean seedlings under NaCl treatment”
Claim · model-written summary
DHFe spray restored salt-inhibited growth and photosynthetic capacity in Lee68.
- Taxon
- soybeanGlycine maxt0
- Material
- Lee68e0
- Treatment
- foliar spraying DHFe solutione1
- Outcome
- growth and photosynthetic capacitye0
- Direction
- restoree0
- Comparator
- salt stress-inhibitede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“restore the salt stress-inhibited growth and photosynthetic capacity of Jackson and Lee68 seedlings”
t0“soybean”
e1“foliar spraying DHFe solution on soybean seedlings under NaCl treatment”
Claim · model-written summary
Jackson showed a stronger DHFe response than Lee68.
- Taxon
- soybeanGlycine maxt0
- Material
- Jacksone0
- Outcome
- more pronounced effectse0
- Direction
- more pronouncede0
- Comparator
- Lee68e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“restore the salt stress-inhibited growth and photosynthetic capacity of Jackson and Lee68 seedlings, of which the salt-sensitive cv.Jackson displayed more pronounced effects”
t0“soybean”
Claim · model-written summary
DHFe may raise GmCLC1 transcription in roots and leaves of salt-stressed Jackson.
- Taxon
- soybeanGlycine maxt0
- Material
- Jacksone0
- Organ / stage
- roots and leavese0
- Treatment
- foliar application of DHFee0
- Gene
- GmCLC1e0
- Outcome
- transcription levels of GmCLC1e0
- Direction
- enhancee0
- Comparator
- salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of DHFe could enhance the transcription levels of GmCLC1 in roots and leaves and those of GmSOS1 in roots of Jackson plants under salt stress”
t0“soybean”
Claim · model-written summary
DHFe may raise GmSOS1 transcription in roots of salt-stressed Jackson.
- Taxon
- soybeanGlycine maxt0
- Material
- Jacksone0
- Organ / stage
- rootse0
- Treatment
- foliar application of DHFee1
- Gene
- GmSOS1e0
- Outcome
- those of GmSOS1e0
- Direction
- increaseinferrede0
- Comparator
- salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those of GmSOS1 in roots of Jackson plants under salt stress”
t0“soybean”
e1“foliar application of DHFe could enhance the transcription levels of GmCLC1 in roots and leaves and those of GmSOS1 in roots of Jackson plants under salt stress”
Claim · model-written summary
DHFe under salt stress improved pod and seed counts and seed dry weight in both cultivars.
- Taxon
- soybeanGlycine maxe0
- Treatment
- foliar spraying DHFee0
- Outcome
- numbers of pods and seeds and seeds dry weight per plante0
- Direction
- improvee0
- Qualifier
- to a certain extente0
- Comparator
- salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar spraying DHFe under salt stress could improve, to a certain extent, the seed traits (including the numbers of pods and seeds and seeds dry weight per plant) of both soybean cultivars”
The same questions in other papers
application · molecular: expression · Glycine max (soybean)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →application · physiology: oxidative · Glycine max (soybean)Positive and negative results
20 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
19 papers more in this group
See all 23 papers →application · physiology: photosynthesis · Glycine max (soybean)Positive and negative results
32 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
32 papers more in this group
See all 36 papers →application · growth · Glycine max (soybean)Positive and negative results
170 papers in the same direction as this paper · 35 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
203 papers more in this group
See all 207 papers →application · physiology: antioxidant enzymes · Glycine max (soybean)Results agree
16 papers in the same direction as this paper
- positive
- positive
- positive
13 papers more in this group
See all 17 papers →application · physiology: water · Glycine max (soybean)Results agree
17 papers in the same direction as this paper
- positive
- positive
- positive
14 papers more in this group
See all 18 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.