Abstract
Abstract Nitrate (NO3‐) and ammonium (NH4+) are the two main forms of nitrogen (N) taken up by plants. Several environmental factors affect the uptake of N. This work was undertaken to study the induction of NO3‐ and NH4+ transport systems in wheat (Triticum aestivum L.) roots as affected by salinity and light. Wheat seedlings were germinated in sterilized vermiculite and plants were grown in a growth chamber under controlled conditions for eight days with a nutrient solution without N, and with or without sodium chloride (NaCl). Uptake rates of NO3% NH4+, or NH4++ NO3‐ were calculated by measuring the disappearance of N from the solutions. The NO3‐ uptake developed with time, either through induction or activation. Salinity pretreatments increased net uptake rates of NO3‐ and NH4 +, suggesting that plants were in a higher N‐deficient status when grown in saline conditions. Light decreased initial NO3"; uptake but had little effect on initial NH4+ uptake.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
Nitrate uptake developed over time through induction or activation.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- NO3‐ uptakee0
- Direction
- developede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NO3‐ uptake developed with time, either through induction or activation.”
t0“wheat seedlings”
Claim · model-written summary
Salinity pretreatment increased net nitrate uptake.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Salinity pretreatmentse0
- Outcome
- net uptake rates of NO3‐e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity pretreatments increased net uptake rates of NO3‐ and NH4 +”
t0“wheat seedlings”
Claim · model-written summary
Salinity pretreatment increased net ammonium uptake.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Salinity pretreatmentse0
- Outcome
- NH4 +e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity pretreatments increased net uptake rates of NO3‐ and NH4 +”
t0“wheat seedlings”
Claim · model-written summary
Light decreased initial nitrate uptake.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Lighte0
- Outcome
- initial NO3"; uptakee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light decreased initial NO3"; uptake”
t0“wheat seedlings”
Claim · model-written summary
Light had little effect on initial ammonium uptake.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Lighte0
- Outcome
- initial NH4+ uptakee0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light decreased initial NO3"; uptake but had little effect on initial NH4+ uptake.”
t0“wheat seedlings”
The same questions in other papers
light · nutrient: content · Triticum aestivum (wheat)Positive and negative results
5 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 papers →salinity · nutrient: content · Triticum aestivum (wheat)Positive and negative results
18 papers in the same direction as this paper · 65 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
81 papers more in this group
See all 85 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.