Abstract
Lipid peroxidation and the generation of free radicals may contribute to seed deterioration. Lipoxygenase (LOX) is thought to be a major contributor to lipid peroxidation and free radical generation. This investigation was initiated to determine whether inactivation of one or two of the three LOX isozymes would alter soybean [ Glycine max (L.) Merr.] seed storability. Seed from three soybean near‐isogenic LOX null isolines and ‘Century’ were produced at Lexington, KY, in 1991, stored at 120 g kg −1 seed moisture and 30°C, sampled periodically for 155 d, and tested for seed vigor and viability. Embryonic axes excised from deteriorated seeds were tested for LOX activity, total and free fatty acid content, and production of six‐carbon aldehydes. Century and all the LOX genotypes had high initial seed quality and lost germination and vigor (accelerated aging and cold tests) in a similar manner during storage. As seed vigor and viability declined during storage, there was a concurrent rise in free fatty acid content and E ‐2‐hexenal formation for all genotypes. Free linoleic and linolenic acids and E ‐2‐hexenal were inversely related to seed vigor as measured by accelerated aging and cold tests ( r ≥ 0.71), and this relationship did not vary among LOX isolines. Seed from the LOX mutants did not show greater or less longevity in the same storage environment. Thus, the loss of one or two of the three LOX isozymes had no effect on soybean seed deterioration.
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Claims 4
Claim · model-written summary
Loss of one or two of the three LOX isozymes had no effect on soybean seed deterioration.
- Taxon
- soybean
Glycine maxe5 - Treatment
- loss of one or two of the three LOX isozymese5
- Gene
- LOX isozymese5
- Outcome
- seed deterioratione5
- Direction
- had no effecte5
- Comparator
- Centurye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Century and all the LOX genotypes had high initial seed quality and lost germination and vigor (accelerated aging and cold tests) in a similar manner during storage”
e5“Thus, the loss of one or two of the three LOX isozymes had no effect on soybean seed deterioration”
Claim · model-written summary
Century and all LOX genotypes lost germination and vigor in a similar manner during storage.
- Taxon
- soybeanGlycine maxe1
- Treatment
- during storagee2
- Outcome
- germination and vigore2
- Direction
- in a similar mannere2
- Comparator
- Centurye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“inactivation of one or two of the three LOX isozymes would alter soybean [ Glycine max (L.) Merr.] seed storability”
e2“Century and all the LOX genotypes had high initial seed quality and lost germination and vigor (accelerated aging and cold tests) in a similar manner during storage”
Claim · model-written summary
Free linoleic and linolenic acids were inversely related to soybean seed vigor (r ≥ 0.71).
- Taxon
- soybeanGlycine maxe1
- Compound
- free linoleic and linolenic acidse4
- Outcome
- seed vigore4
- Direction
- inversely relatede4
- Value
- r ≥ 0.71e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“inactivation of one or two of the three LOX isozymes would alter soybean [ Glycine max (L.) Merr.] seed storability”
e4“Free linoleic and linolenic acids and E ‐2‐hexenal were inversely related to seed vigor as measured by accelerated aging and cold tests ( r ≥ 0.71)”
Claim · model-written summary
As seed vigor and viability declined during storage, free fatty acid content and E-2-hexenal formation rose concurrently.
- Taxon
- soybeanGlycine maxe1
- Treatment
- during storagee3
- Outcome
- free fatty acid content and E ‐2‐hexenal formatione3
- Direction
- risee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“inactivation of one or two of the three LOX isozymes would alter soybean [ Glycine max (L.) Merr.] seed storability”
e3“As seed vigor and viability declined during storage, there was a concurrent rise in free fatty acid content and E ‐2‐hexenal formation for all genotypes”
The same questions in other papers
storage · growth · Glycine max (soybean)Positive and negative results
25 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
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See all 51 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.