Abstract
The expression of two novel subtilisin-like serine proteases At-SLP2 and At-SLP3 from Arabidopsis thaliana and the recently identified Arabidopsis subtilase ARA12 was analysed with respect to plant development, stress response and cell specificity. In juvenile plants the mRNAs of the subtilisin-like proteases At-SLP2, At-SLP3 and ARA12 were detected with varying transcript levels in leaves but not in roots. In mature Arabidopsis plants transcripts were abundant in leaves, roots and flowers revealing developmental regulation of synthesis of subtilases. By in situ hybridization it was shown that the subtilisin-like proteases were predominantly present in epidermal cells and in the vascular bundles, in the phloem and in developing xylem elements. In flowers additional signals were localized, for example, in pistils, ovules and anthers. In flowers and juvenile developing leaves, expression of the subtilisin-like proteases increased following treatment with jasmonate and cadmium, respectively, suggesting that these proteases are responsive to stress and pathogen stimuli. The physiological relevance of these data in relation to plant morphogenesis and development is discussed.
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Claims 6
Claim · model-written summary
At-SLP2, At-SLP3 and ARA12 transcripts were found in juvenile leaves but not roots, at varying levels.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Organ / stage
- juvenile plantse0
- Gene
- At-SLP2, At-SLP3 and ARA12e0
- Outcome
- detected with varying transcript levels in leaves but not in rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In juvenile plants the mRNAs of the subtilisin-like proteases At-SLP2, At-SLP3 and ARA12 were detected with varying transcript levels in leaves but not in roots”
t0“Arabidopsis thaliana”
Claim · model-written summary
Mature Arabidopsis had abundant subtilase transcripts in leaves, roots and flowers.
- Taxon
- ArabidopsisArabidopsise0
- Organ / stage
- maturee0
- Outcome
- transcripts were abundant in leaves, roots and flowerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In mature Arabidopsis plants transcripts were abundant in leaves, roots and flowers revealing developmental regulation of synthesis of subtilases”
Claim · model-written summary
Subtilisin-like proteases were predominantly detected in epidermis and vascular tissues.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Gene
- subtilisin-like proteasese0
- Outcome
- predominantly present in epidermal cells and in the vascular bundles, in the phloem and in developing xylem elementse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the subtilisin-like proteases were predominantly present in epidermal cells and in the vascular bundles, in the phloem and in developing xylem elements”
t0“Arabidopsis thaliana”
Claim · model-written summary
Flower signals occurred in pistils, ovules and anthers.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Organ / stage
- flowerse0
- Outcome
- signals were localized, for example, in pistils, ovules and antherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In flowers additional signals were localized, for example, in pistils, ovules and anthers”
t0“Arabidopsis thaliana”
Claim · model-written summary
Jasmonate increased subtilase expression in flowers.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Organ / stage
- flowerse0
- Treatment
- jasmonatee0
- Gene
- subtilisin-like proteasese0
- Outcome
- expression of the subtilisin-like proteasese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In flowers and juvenile developing leaves, expression of the subtilisin-like proteases increased following treatment with jasmonate and cadmium, respectively”
t0“Arabidopsis thaliana”
Claim · model-written summary
Cadmium increased subtilase expression in juvenile developing leaves.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Organ / stage
- juvenile developing leavese0
- Treatment
- cadmiume0
- Gene
- subtilisin-like proteasese0
- Outcome
- expression of the subtilisin-like proteasese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In flowers and juvenile developing leaves, expression of the subtilisin-like proteases increased following treatment with jasmonate and cadmium, respectively”
t0“Arabidopsis thaliana”
The same questions in other papers
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- no effect
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See all 7 papers →jasmonic acid · molecular: expression · Arabidopsis thaliana (thale cress)Positive and negative results
9 papers in the same direction as this paper · 4 in the opposite direction
- negative
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See all 14 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.