Abstract
The nodulation characteristics of soybean (Glycine max) mutant nts382 are described. The mutant nodulated significantly more than the parent cultivar Bragg in the presence and absence of several combined nitrogen sources (KNO(3), urea, NH(4)Cl, and NH(4)NO(3)). The number of nodules on the tap root and on lateral roots was increased in the mutant line. In the presence of KNO(3) and urea, nitrogenase activity was considerably higher in nts382 than in Bragg. Mutant plants were generally smaller than wild-type plants. Although nts382 is a supernodulator, inoculation with Rhizobium japonicum was necessary to induce nodule formation and both trial strains CB1809 (= USDA136) and USDA110 elicited the mutant phenotype. Segregation of M(3) progeny derived from a M(2) wild-type plant indicated that the mutant character is inherited as a Mendelian recessive. The mutant is discussed in the context of regulation of nodulation and of hypotheses that have been proposed to explain nitrate inhibition of nodulation.
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Claims 9
Claim · model-written summary
nts382 nodulated significantly more than Bragg with or without combined nitrogen sources.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mutant nodulated significantly more than the parent cultivar Bragg in the presence and absence of several combined nitrogen sources (KNO(3), urea, NH(4)Cl, and NH(4)NO(3))”
t0“Soybean”
Claim · model-written summary
nts382 had more tap root nodules.
- Taxon
- Soybean
Glycine maxt0 - Material
- mutant linee0
- Outcome
- number of nodules on the tap roote0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of nodules on the tap root and on lateral roots was increased in the mutant line”
t0“Soybean”
Claim · model-written summary
nts382 had more lateral root nodules.
- Taxon
- SoybeanGlycine maxt0
- Material
- mutant linee0
- Outcome
- number of nodules on the tap root and on lateral rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of nodules on the tap root and on lateral roots was increased in the mutant line”
t0“Soybean”
Claim · model-written summary
With KNO3 and urea, nts382 had considerably higher nitrogenase activity than Bragg.
- Taxon
- SoybeanGlycine maxt0
- Material
- nts382e0
- Outcome
- nitrogenase activitye0
- Direction
- highere0
- Qualifier
- In the presence of KNO(3) and ureae0
- Comparator
- Bragge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of KNO(3) and urea, nitrogenase activity was considerably higher in nts382 than in Bragg”
t0“Soybean”
Claim · model-written summary
Mutant plants were generally smaller than wild type plants.
- Taxon
- SoybeanGlycine maxt0
- Material
- Mutant plantse0
- Outcome
- smallere0
- Direction
- smallere0
- Comparator
- wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutant plants were generally smaller than wild-type plants”
t0“Soybean”
Claim · model-written summary
Rhizobium japonicum inoculation was necessary for nts382 nodule formation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- inoculation with Rhizobium japonicume0
- Interactor
- Rhizobium japonicume0symbiont
- Outcome
- nodule formatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with Rhizobium japonicum was necessary to induce nodule formation”
t0“Soybean”
Claim · model-written summary
Rhizobium strain CB1809 elicited the mutant phenotype.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CB1809e0
- Interactor
- CB1809e0symbiont
- Outcome
- mutant phenotypee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both trial strains CB1809 (= USDA136) and USDA110 elicited the mutant phenotype”
t0“Soybean”
Claim · model-written summary
Rhizobium strain USDA110 elicited the mutant phenotype.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- USDA110e0
- Interactor
- USDA110e0symbiont
- Outcome
- mutant phenotypee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both trial strains CB1809 (= USDA136) and USDA110 elicited the mutant phenotype”
t0“Soybean”
Claim · model-written summary
The nts mutant character segregated as a Mendelian recessive.
- Taxon
- SoybeanGlycine maxt0
- Material
- M(3) progenye0
- Outcome
- mutant character is inherited as a Mendelian recessivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Segregation of M(3) progeny derived from a M(2) wild-type plant indicated that the mutant character is inherited as a Mendelian recessive”
t0“Soybean”
The same questions in other papers
Rhizobium · symbiosis · Glycine max (soybean)Positive and negative results
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- no effect
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264 papers in the same direction as this paper · 43 in the opposite direction · 2 reporting no difference from an alternative
- negative
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See all 310 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.