Abstract
Highly purified oilseed rape (Brassica napus) root plasma membrane fractions were prepared and their polypeptide patterns analysed by two-dimensional gel electrophoresis. Sulphur starvation enhances the sulphate uptake capacity of B. napus roots. The relative abundance of several polypeptides increased significantly and specifically after sulphur starvation. Several of them (37, 38, 60, and 65 kDa), found in sulphur-starved plants, were more abundant in a phase-partitioned membrane fraction treated with Triton X-100/KBr, indicating that they are intrinsic polypeptides. One polypeptide (47 kDa) was identified in the in vitro translation products of the roots mRNAs as specific for S-starved plants. It was also present among the intrinsic polypeptides specific for —S plants. These plasma membrane polypeptides might be involved in sulphate uptake.
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Claims 5
Claim · model-written summary
Sulphur starvation enhanced sulphate uptake capacity in B. napus roots.
- Taxon
- B. napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Organ / stage
- rootse0
- Treatment
- Sulphur starvatione0
- Outcome
- sulphate uptake capacitye0
- Direction
- enhancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Sulphur starvation enhances the sulphate uptake capacity of B. napus roots.”
Claim · model-written summary
Several polypeptides became significantly more abundant specifically after sulphur starvation.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- sulphur starvatione0
- Outcome
- relative abundance of several polypeptidese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relative abundance of several polypeptides increased significantly and specifically after sulphur starvation.”
t0“Brassica napus”
Claim · model-written summary
Four polypeptides in sulphur-starved plants were enriched in a treated membrane fraction, suggesting intrinsic membrane localization.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Triton X-100/KBre0
- Outcome
- intrinsic polypeptidese0
- Direction
- more abundante0
- Value
- 37, 38, 60, and 65 kDae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Several of them (37, 38, 60, and 65 kDa), found in sulphur-starved plants, were more abundant in a phase-partitioned membrane fraction treated with Triton X-100/KBr, indicating that they are intrinsic polypeptides.”
t0“Brassica napus”
Claim · model-written summary
A 47 kDa translation product was specific to S-starved roots and present among intrinsic polypeptides.
- Taxon
- Brassica napusBrassica napust0
- Organ / stage
- rootse0
- Outcome
- polypeptidee0
- Value
- 47 kDae0
- Qualifier
- specific for S-starved plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One polypeptide (47 kDa) was identified in the in vitro translation products of the roots mRNAs as specific for S-starved plants. It was also present among the intrinsic polypeptides specific for —S plants.”
t0“Brassica napus”
Claim · model-written summary
The plasma membrane polypeptides may participate in sulphate uptake.
- Taxon
- Brassica napusBrassica napust0
- Outcome
- sulphate uptakee0
- Qualifier
- plasma membrane polypeptidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These plasma membrane polypeptides might be involved in sulphate uptake.”
t0“Brassica napus”
The same questions in other papers
sulfur atom · pest · Brassica napus (oilseed rape)Positive and negative results
2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
sulfur atom · nutrient: content · Brassica napus (oilseed rape)Positive and negative results
4 papers in the same direction as this paper · 19 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
20 papers more in this group
See all 24 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.