Abstract
This paper shows that lipo-oligosaccharides (Nod factors) synthesized by Rhizobium bacteria elicit the induction of infection-related early nodulin genes (PsENOD5 and PsENOD12) in pea root hairs. R. leguminosarum bv. viciae secretes a mixture of Nod factors containing a C18 fatty acid chain with 4 (C18:4) or 1 double bond (C18:1). Purified Nod factors harbouring either a C18:4 or a C18:1 acyl moiety induce the expression of the pea early nodulin genes, PsENOD5 and PsENOD12, but the kinetics of induction are different. The expression of both early nodulin genes is induced in a transient manner by the purified Nod factors while a mixture of the Nod factors extends the period during which these genes are expressed. In spite of the host-specific nature of the infection process, heterologous Nod factors of R. meliloti also induce the expression of PsENOD5 and PsENOD12 genes, though with a marked delay compared with the homologous compounds.
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Claims 6
Claim · model-written summary
Rhizobium Nod factors induce PsENOD5 and PsENOD12 in pea root hairs.
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- lipo-oligosaccharides (Nod factors)e0
- Gene
- PsENOD5 and PsENOD12e0
- Outcome
- induction of infection-related early nodulin genese0
- Direction
- inductione0
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“lipo-oligosaccharides (Nod factors) synthesized by Rhizobium bacteria elicit the induction of infection-related early nodulin genes (PsENOD5 and PsENOD12) in pea root hairs”
Claim · model-written summary
Purified C18:4 Nod factors induce the pea early nodulin genes.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- C18:4e0
- Gene
- PsENOD5 and PsENOD12e0
- Outcome
- expression of the pea early nodulin genese0
- Direction
- inducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“Purified Nod factors harbouring either a C18:4 or a C18:1 acyl moiety induce the expression of the pea early nodulin genes, PsENOD5 and PsENOD12”
Claim · model-written summary
Purified C18:1 Nod factors induce the pea early nodulin genes.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- C18:1e0
- Gene
- PsENOD5 and PsENOD12e0
- Outcome
- expression of the pea early nodulin genese0
- Direction
- inducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“Purified Nod factors harbouring either a C18:4 or a C18:1 acyl moiety induce the expression of the pea early nodulin genes, PsENOD5 and PsENOD12”
Claim · model-written summary
Purified Nod factors induce transient early nodulin expression.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- purified Nod factorse0
- Outcome
- expression of both early nodulin genese0
- Direction
- inducede0
- Qualifier
- transient mannere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“The expression of both early nodulin genes is induced in a transient manner by the purified Nod factors”
Claim · model-written summary
A mixture of Nod factors extends the expression period of the early nodulin genes.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- a mixture of the Nod factorse0
- Outcome
- period during which these genes are expressede0
- Direction
- extendse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“a mixture of the Nod factors extends the period during which these genes are expressed”
Claim · model-written summary
R. meliloti Nod factors induce PsENOD5 and PsENOD12, with a marked delay relative to homologous compounds.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- heterologous Nod factors of R. melilotie0
- Interactor
- R. meliloti
Sinorhizobium melilotie0symbiont - Outcome
- expression of PsENOD5 and PsENOD12 genese0
- Direction
- inducee0
- Qualifier
- marked delaye0
- Comparator
- homologous compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea root hairs”
e0“heterologous Nod factors of R. meliloti also induce the expression of PsENOD5 and PsENOD12 genes, though with a marked delay compared with the homologous compounds”
The same questions in other papers
nodulation factor · molecular: expression · Lathyrus oleraceus (pea)Positive and negative results
1 in the opposite direction
- no effect
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.