Abstract
Rice (Oryza sativa L.) and brown planthoppers (BPH) (Nilaparvata lugens Stål) provide an ideal system for studying molecular mechanisms involved in the interactions between plants and phloem-feeding insects. The phenotypic responses and changes in transcript profiles of seedlings representing two rice cultivars differing in resistance to the BPH were analyzed. In the BPH-compatible (susceptible) cv. MH63, BPH feeding reduced three examined plant growth parameters (leaf area expansion, height increases, and dry weight increases) and photosynthetic rates of the leaves. In the BPH-incompatible (resistant) cv. B5, BPH feeding caused slight reductions in protein and sucrose contents, but the plants maintained their photosynthetic activity and grew normally. A cDNA microarray containing 1,920 suppression subtractive hybridization clones was used to explore the transcript profiles differences in the two cultivars under control and BPH-feeding conditions. In total, 160 unique genes were detected as being significantly affected by BPH feeding in rice plants, covering a wide range of functional categories, and there were 38 genes that showed the similar transcript pattern in both genotypes. The physiological responses and transcript profiles of plants represented in both genotypes suggested that multiple pathways might be involved in reprogramming of BPH-infested rice plants. The differences in transcript levels between the compatible and incompatible interactions revealed in this study were not only the reaction of resistance and susceptibility but also reflections of different damage rates and genotypic backgrounds of the rice cultivars.
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Claims 7
Claim · model-written summary
Planthopper feeding reduced leaf expansion, height increase and dry weight increase in susceptible MH63.
- Taxon
- Rice
Oryza sativat0 - Material
- cv. MH63e0
- Treatment
- BPH feedinge0
- Interactor
- BPHe0pest
- Outcome
- leaf area expansion, height increases, and dry weight increasese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the BPH-compatible (susceptible) cv. MH63, BPH feeding reduced three examined plant growth parameters (leaf area expansion, height increases, and dry weight increases)”
t0“Rice”
Claim · model-written summary
Planthopper feeding reduced photosynthetic rate in susceptible MH63.
- Taxon
- RiceOryza sativat0
- Material
- cv. MH63e0
- Treatment
- BPH feedinge0
- Interactor
- BPHe0pest
- Outcome
- photosynthetic rates of the leavese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the BPH-compatible (susceptible) cv. MH63, BPH feeding reduced three examined plant growth parameters (leaf area expansion, height increases, and dry weight increases) and photosynthetic rates of the leaves”
t0“Rice”
Claim · model-written summary
Planthopper feeding slightly reduced protein and sucrose contents in resistant B5.
- Taxon
- RiceOryza sativat0
- Material
- cv. B5e0
- Treatment
- BPH feedinge0
- Interactor
- BPHe0pest
- Outcome
- protein and sucrose contentse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the BPH-incompatible (resistant) cv. B5, BPH feeding caused slight reductions in protein and sucrose contents”
t0“Rice”
Claim · model-written summary
Resistant B5 maintained photosynthetic activity under planthopper feeding.
- Taxon
- RiceOryza sativat0
- Material
- cv. B5e0
- Interactor
- BPHe0pest
- Outcome
- maintained their photosynthetic activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the BPH-incompatible (resistant) cv. B5, BPH feeding caused slight reductions in protein and sucrose contents, but the plants maintained their photosynthetic activity and grew normally”
t0“Rice”
Claim · model-written summary
Resistant B5 grew normally under planthopper feeding.
- Taxon
- RiceOryza sativat0
- Material
- cv. B5e0
- Interactor
- BPHe0pest
- Outcome
- grew normallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the BPH-incompatible (resistant) cv. B5, BPH feeding caused slight reductions in protein and sucrose contents, but the plants maintained their photosynthetic activity and grew normally”
t0“Rice”
Claim · model-written summary
Planthopper feeding significantly affected 160 unique rice genes.
- Taxon
- rice plantsOryza sativae0
- Interactor
- BPHe0pest
- Outcome
- unique genese0
- Value
- 160e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“160 unique genes were detected as being significantly affected by BPH feeding in rice plants”
Claim · model-written summary
Thirty-eight genes had similar transcript patterns in both genotypes.
- Taxon
- RiceOryza sativat0
- Outcome
- similar transcript patterne0
- Value
- 38 genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“38 genes that showed the similar transcript pattern in both genotypes”
t0“Rice”
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See all 5 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.