Abstract
Deficiency of micronutrients in soil particularly, that of Fe is a major nutritional and production constraint worldwide. We hypothesize a role of sulphur nutrition in altering the Fe deficiency tolerance response of crop plants. Present investigation was conducted to elucidate the role of S in regulating uptake and in-plant partitioning of Fe in bread and durum wheat through a field and a nutrient solution culture experiment. S application to wheat, on low Fe field soil (<4ppm), increased the shoot Fe concentration and grain yield significantly. Results from the hydroponic studies, which supported the field level observations, showed that an increase in Fe uptake by Fe deficient plants under S sufficiency is mediated via a higher release of PS and that S deficiency inhibits the root synthesis and release of PS. Transcript expression analysis revealed an up regulation of YS1 transporter and a down regulation of SULTR1; 1 transporter at increasing S nutrition. Interestingly, SULTR1; 1 expression was up regulated only in the presence of Fe. The study concludes that S nutrition is critical for Fe deficiency tolerance response of crops and indicates a reverse regulation of S nutrition by Fe under low S.
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Claims 9
Claim · model-written summary
Sulphur application significantly raised shoot Fe concentration in wheat on low-Fe field soil.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- S applicatione0
- Outcome
- shoot Fe concentratione0
- Direction
- increasede0
- Qualifier
- <4ppme0
- Setting
- low Fe field soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S application to wheat, on low Fe field soil (<4ppm), increased the shoot Fe concentration and grain yield significantly.”
Claim · model-written summary
Sulphur application significantly raised wheat grain yield on low-Fe field soil.
- Taxon
- wheatTriticum aestivume0
- Treatment
- S applicatione0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- <4ppme0
- Setting
- low Fe field soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S application to wheat, on low Fe field soil (<4ppm), increased the shoot Fe concentration and grain yield significantly.”
Claim · model-written summary
Under S sufficiency, Fe-deficient wheat plants had increased Fe uptake mediated by higher PS release.
- Taxon
- wheatTriticum aestivume1
- Compound
- PSe0
- Outcome
- Fe uptakee0
- Direction
- increasee0
- Qualifier
- under S sufficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in Fe uptake by Fe deficient plants under S sufficiency is mediated via a higher release of PS”
e1“in bread and durum wheat”
Claim · model-written summary
S deficiency inhibited root synthesis and release of PS in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- S deficiencye0
- Outcome
- root synthesis and release of PSe0
- Direction
- inhibitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S deficiency inhibits the root synthesis and release of PS.”
e1“in bread and durum wheat”
Claim · model-written summary
Increasing S nutrition upregulated YS1 transporter expression in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- increasing S nutritione0
- Gene
- YS1 transportere0
- Outcome
- YS1 transportere0
- Direction
- up regulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcript expression analysis revealed an up regulation of YS1 transporter and a down regulation of SULTR1; 1 transporter at increasing S nutrition.”
e1“in bread and durum wheat”
Claim · model-written summary
Increasing S nutrition downregulated SULTR1; 1 transporter expression in wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- increasing S nutritione0
- Gene
- SULTR1; 1 transportere0
- Outcome
- SULTR1; 1 transportere0
- Direction
- down regulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcript expression analysis revealed an up regulation of YS1 transporter and a down regulation of SULTR1; 1 transporter at increasing S nutrition.”
e1“in bread and durum wheat”
Claim · model-written summary
SULTR1; 1 expression was upregulated only in the presence of Fe.
- Taxon
- wheatTriticum aestivume1
- Treatment
- presence of Fee0
- Gene
- SULTR1; 1e0
- Outcome
- SULTR1; 1 expressione0
- Direction
- up regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SULTR1; 1 expression was up regulated only in the presence of Fe.”
e1“in bread and durum wheat”
Claim · model-written summary
The authors conclude that S nutrition is critical for crop Fe-deficiency tolerance.
- Taxon
- wheatTriticum aestivume1
- Outcome
- Fe deficiency tolerance responsee0
- Qualifier
- S nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S nutrition is critical for Fe deficiency tolerance response of crops”
e1“in bread and durum wheat”
Claim · model-written summary
The authors infer reverse regulation of S nutrition by Fe under low S.
- Taxon
- wheatTriticum aestivume1
- Compound
- Fee0
- Outcome
- S nutritione0
- Qualifier
- under low Se0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicates a reverse regulation of S nutrition by Fe under low S.”
e1“in bread and durum wheat”
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