Abstract
Hydroxyproline-rich glycoproteins (HRGPs) are important structural components of plant cell walls and also accumulate in response to infection as an apparent defense mechanism. Accumulation of HRGP mRNA in biologically stressed bean (Phaseolus vulgaris L.) cells was monitored by blot hybridization with (32)P-labeled tomato genomic HRGP sequences. Elicitor treatment of suspension-cultured cells caused a marked increase in hybridizable HRGP mRNA. The response was less rapid but more prolonged than that observed for mRNAs encoding enzymes of phytoalexin biosynthesis. HRGP mRNA also accumulated during race:cultivar-specific interactions between bean hypocotyls and the partially biotrophic fungus Colletotrichum lindemuthianum, the causal agent of anthracnose. In an incompatible interaction (host resistant) there was an early increase in HRGP mRNA correlated with expression of hypersensitive resistance; whereas, in a compatible interaction (host susceptible), marked accumulation of HRGP mRNA occurred as a delayed response at the onset of lesion formation. In both interactions, mRNA accumulation was observed in uninfected cells distant from the site of fungal inoculation, indicating intercellular transmission of an elicitation signal.
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Claims 5
Claim · model-written summary
Elicitor treatment markedly increased HRGP mRNA in bean cells.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarise1 - Treatment
- Elicitor treatmente0
- Gene
- HRGPe0
- Outcome
- hybridizable HRGP mRNAe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elicitor treatment of suspension-cultured cells caused a marked increase in hybridizable HRGP mRNA”
e1“bean (Phaseolus vulgaris L.)”
Claim · model-written summary
HRGP mRNA response was slower and more prolonged than phytoalexin enzyme mRNA response.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise2
- Gene
- HRGPe1
- Outcome
- responsee0
- Direction
- less rapid but more prolongede0
- Comparator
- mRNAs encoding enzymes of phytoalexin biosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response was less rapid but more prolonged than that observed for mRNAs encoding enzymes of phytoalexin biosynthesis”
e1“HRGP mRNA in biologically stressed bean (Phaseolus vulgaris L.) cells”
e2“stressed bean (Phaseolus vulgaris L.)”
Claim · model-written summary
In resistant bean interactions, HRGP mRNA increased early with hypersensitive resistance.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise1
- Interactor
- Colletotrichum lindemuthianum
Colletotrichum lindemuthianume2pathogen - Gene
- HRGPe0
- Outcome
- HRGP mRNAe0
- Direction
- increasee0
- Qualifier
- incompatible interaction (host resistant)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In an incompatible interaction (host resistant) there was an early increase in HRGP mRNA correlated with expression of hypersensitive resistance”
e1“bean (Phaseolus vulgaris L.)”
e2“Colletotrichum lindemuthianum”
Claim · model-written summary
In susceptible bean interactions, HRGP mRNA accumulated later at lesion onset.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise1
- Interactor
- Colletotrichum lindemuthianumColletotrichum lindemuthianume2pathogen
- Gene
- HRGPe0
- Outcome
- HRGP mRNAe0
- Direction
- accumulatione0
- Qualifier
- compatible interaction (host susceptible)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in a compatible interaction (host susceptible), marked accumulation of HRGP mRNA occurred as a delayed response at the onset of lesion formation”
e1“bean (Phaseolus vulgaris L.)”
e2“Colletotrichum lindemuthianum”
Claim · model-written summary
HRGP mRNA accumulated in uninfected bean cells distant from fungal inoculation.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarise1
- Interactor
- Colletotrichum lindemuthianumColletotrichum lindemuthianume3pathogen
- Gene
- HRGPe2
- Outcome
- mRNA accumulatione0
- Direction
- accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both interactions, mRNA accumulation was observed in uninfected cells distant from the site of fungal inoculation”
e1“stressed bean (Phaseolus vulgaris L.)”
e2“HRGP mRNA also accumulated”
e3“Colletotrichum lindemuthianum”
The same questions in other papers
resistance inducer · molecular: expression · Phaseolus vulgaris (common bean)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 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.