Abstract
It has been hypothesized that the relatively low concentration of sulfur amino acids in legume seeds might be an ecological adaptation to nutrient poor, marginal soils. SARC1 and SMARC1N-PN1 are genetically related lines of common bean (dry bean, Phaseolus vulgaris) differing in seed storage protein composition. In SMARC1N-PN1, the lack of phaseolin and major lectins is compensated by increased levels of sulfur-rich proteins, resulting in an enhanced concentration of cysteine and methionine, mostly at the expense of the abundant non-protein amino acid, S-methylcysteine. To identify potential effects associated with an increased concentration of sulfur amino acids in the protein pool, the response of the two genotypes to low and high sulfur nutrition was evaluated under controlled conditions. Seed yield was increased by the high sulfate treatment in SMARC1N-PN1. The seed concentrations of sulfur, sulfate, and S-methylcysteine were altered by the sulfur treatment in both genotypes. The concentration of total cysteine and extractible globulins was increased specifically in SMARC1N-PN1. Proteomic analysis identified arcelin-like protein 4, lipoxygenase-3, albumin-2, and alpha amylase inhibitor beta chain as having increased levels under high sulfur conditions. Lipoxygenase-3 accumulation was sensitive to sulfur nutrition only in SMARC1N-PN1. Under field conditions, both SARC1 and SMARC1N-PN1 exhibited a slight increase in yield in response to sulfur treatment, typical for common bean.
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Claims 8
Claim · model-written summary
SMARC1N-PN1 lacked phaseolin and major lectins and had higher sulfur-rich proteins.
Not reportedTaxon
Verbatim
e0“In SMARC1N-PN1, the lack of phaseolin and major lectins is compensated by increased levels of sulfur-rich proteins”
Claim · model-written summary
SMARC1N-PN1 had enhanced cysteine and methionine concentration, largely at the expense of S-methylcysteine.
Not reportedTaxon
Verbatim
e0“resulting in an enhanced concentration of cysteine and methionine, mostly at the expense of the abundant non-protein amino acid, S-methylcysteine”
Claim · model-written summary
High sulfate increased seed yield in SMARC1N-PN1.
Not reportedTaxonComparator
Verbatim
e0“Seed yield was increased by the high sulfate treatment in SMARC1N-PN1.”
Claim · model-written summary
Sulfur treatment altered seed concentrations of sulfur, sulfate and S-methylcysteine in both genotypes.
Not reportedTaxonComparatorDirection
Verbatim
e0“The seed concentrations of sulfur, sulfate, and S-methylcysteine were altered by the sulfur treatment in both genotypes.”
Claim · model-written summary
Total cysteine concentration increased specifically in SMARC1N-PN1.
- Material
- SMARC1N-PN1e0
- Outcome
- concentration of total cysteine and extractible globulinse0
- Direction
- increasede0
Not reportedTaxon
Verbatim
e0“The concentration of total cysteine and extractible globulins was increased specifically in SMARC1N-PN1.”
Claim · model-written summary
Four named seed proteins increased under high sulfur.
- Treatment
- high sulfur conditionse0
- Gene
- arcelin-like protein 4, lipoxygenase-3, albumin-2, and alpha amylase inhibitor beta chaine0
- Outcome
- increased levelse0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Proteomic analysis identified arcelin-like protein 4, lipoxygenase-3, albumin-2, and alpha amylase inhibitor beta chain as having increased levels under high sulfur conditions.”
Claim · model-written summary
Lipoxygenase-3 accumulation responded to sulfur nutrition only in SMARC1N-PN1.
Not reportedTaxonDirection
Verbatim
e0“Lipoxygenase-3 accumulation was sensitive to sulfur nutrition only in SMARC1N-PN1.”
Claim · model-written summary
Sulfur treatment slightly increased field yield in both SARC1 and SMARC1N-PN1.
- Taxon
- common bean
Phaseolus vulgarise0 - Material
- SARC1 and SMARC1N-PN1e0
- Treatment
- sulfur treatmente0
- Outcome
- yielde0
- Direction
- increasee0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under field conditions, both SARC1 and SMARC1N-PN1 exhibited a slight increase in yield in response to sulfur treatment, typical for common bean.”
The same questions in other papers
sulfur atom · yield · Phaseolus vulgaris (common bean)Results differ
12 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- no effect
11 papers more in this group
See all 15 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.