Abstract
Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks. The increase in ethylene biosynthesis is accompanied by an accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC), an increase in extractable ACC synthase activity, and increases in ACC synthase and ACC oxidase transcripts. Priming of increases in ACC synthase and ACC oxidase transcripts. Priming of leaves with ethylene (120 microL/L, 14 h) sensitizes the tissue, resulting in an enhanced response to EIX and increases in both the in vivo ACC oxidase activity and ACC oxidase transcript level. EIX and ethylene independently induce ACC oxidase. Inhibition of ethylene biosynthesis by aminoethoxyvinylglycine is not accompanied by a reduction in ACC oxidase transcript level, indicating that ethylene biosynthesis is not required. In contrast to the differential induction of ethylene biosynthesis by EIX in Xanthi versus Hicks cultivars, both cultivars respond to a chemical stress (induced by CuSO4) by enhancing ethylene production. This induction is accompanied by an increase in ACC synthase transcript but not in that of ACC oxidase.
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Claims 11
Claim · model-written summary
EIX elicits ethylene biosynthesis in Nicotiana tabacum cv Xanthi but not in cv Hicks.
- Taxon
- Nicotiana tabacum
Nicotiana tabacume0 - Material
- cv Xanthie0
- Treatment
- Xylanase (EIX) from the fungus Trichoderma viridee0
- Outcome
- ethylene biosynthesise0
- Direction
- elicitse0
- Comparator
- cv Hickse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
Claim · model-written summary
EIX increased the accumulation of ACC in Nicotiana tabacum leaves.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Xylanase (EIX) from the fungus Trichoderma viridee0
- Outcome
- accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC)e1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e1“The increase in ethylene biosynthesis is accompanied by an accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC), an increase in extractable ACC synthase activity, and increases in ACC synthase and ACC oxidase transcripts.”
Claim · model-written summary
EIX increased extractable ACC synthase activity in Nicotiana tabacum leaves.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Xylanase (EIX) from the fungus Trichoderma viridee0
- Gene
- ACC synthasee1
- Outcome
- extractable ACC synthase activitye1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e1“The increase in ethylene biosynthesis is accompanied by an accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC), an increase in extractable ACC synthase activity, and increases in ACC synthase and ACC oxidase transcripts.”
Claim · model-written summary
EIX increased ACC synthase and ACC oxidase transcripts in Nicotiana tabacum leaves.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Xylanase (EIX) from the fungus Trichoderma viridee0
- Gene
- ACC oxidasee1
- Outcome
- ACC synthase and ACC oxidase transcriptse1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e1“The increase in ethylene biosynthesis is accompanied by an accumulation of 1-aminocyclopropane-1-carboxylic acid (ACC), an increase in extractable ACC synthase activity, and increases in ACC synthase and ACC oxidase transcripts.”
Claim · model-written summary
Priming leaves with ethylene enhanced the response to EIX in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Priming of leaves with ethylene (120 microL/L, 14 h)e2
- Outcome
- enhanced response to EIXe2
- Direction
- enhancede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e2“Priming of leaves with ethylene (120 microL/L, 14 h) sensitizes the tissue, resulting in an enhanced response to EIX and increases in both the in vivo ACC oxidase activity and ACC oxidase transcript level.”
Claim · model-written summary
Priming leaves with ethylene increased in vivo ACC oxidase activity and ACC oxidase transcript level.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Priming of leaves with ethylene (120 microL/L, 14 h)e2
- Gene
- ACC oxidasee2
- Outcome
- in vivo ACC oxidase activity and ACC oxidase transcript levele2
- Direction
- increasese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e2“Priming of leaves with ethylene (120 microL/L, 14 h) sensitizes the tissue, resulting in an enhanced response to EIX and increases in both the in vivo ACC oxidase activity and ACC oxidase transcript level.”
Claim · model-written summary
EIX and ethylene independently induce ACC oxidase in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- EIX and ethylenee3
- Outcome
- ACC oxidasee3
- Direction
- inducee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e3“EIX and ethylene independently induce ACC oxidase.”
Claim · model-written summary
Inhibiting ethylene biosynthesis with aminoethoxyvinylglycine did not reduce ACC oxidase transcript level.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Inhibition of ethylene biosynthesis by aminoethoxyvinylglycinee4
- Outcome
- ACC oxidase transcript levele4
- Direction
- not accompanied by a reductione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e4“Inhibition of ethylene biosynthesis by aminoethoxyvinylglycine is not accompanied by a reduction in ACC oxidase transcript level, indicating that ethylene biosynthesis is not required.”
Claim · model-written summary
A chemical stress induced by CuSO4 enhanced ethylene production in both Nicotiana tabacum cultivars.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- a chemical stress (induced by CuSO4)e5
- Outcome
- ethylene productione5
- Direction
- enhancinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e5“both cultivars respond to a chemical stress (induced by CuSO4) by enhancing ethylene production.”
Claim · model-written summary
The CuSO4 chemical stress increased ACC synthase transcript in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- a chemical stress (induced by CuSO4)e5
- Gene
- ACC synthasee6
- Outcome
- ACC synthase transcripte6
- Direction
- increasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e5“both cultivars respond to a chemical stress (induced by CuSO4) by enhancing ethylene production.”
e6“This induction is accompanied by an increase in ACC synthase transcript but not in that of ACC oxidase.”
Claim · model-written summary
The CuSO4 chemical stress did not increase ACC oxidase transcript in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- a chemical stress (induced by CuSO4)e5
- Gene
- ACC oxidasee6
- Outcome
- ACC oxidasee6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xylanase (EIX) from the fungus Trichoderma viride elicits ethylene biosynthesis in leaf tissues of Nicotiana tabacum cv Xanthi but not in cv Hicks.”
e5“both cultivars respond to a chemical stress (induced by CuSO4) by enhancing ethylene production.”
e6“This induction is accompanied by an increase in ACC synthase transcript but not in that of ACC oxidase.”
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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.