Paper · 1999 · Bioscience Biotechnology and Biochemistry

16-O-Demethyl Fusicoccin J and Its 3-Epimer fromFusicoccum amygdali, and Their Seed Germination-stimulating Activity in the Presence of Abscisic Acid

Takeshi SASSA; Chang-Shan ZHANG; Naoto TAJIMA; et al.

5
claims
7
verbatim quotes
8
citations
1
research areas
✓
Open access

Abstract

Our search for new metabolites biosynthetically related to fusicoccin with potent plant growth-stimulating activity from the culture filtrate of Fusicoccum amygdali F6 resulted in the isolation of a new derivative of fusicoccin J, as well as fusicoccin J and 16-O-demethyl 3-epifusicoccin J. Its structure was analyzed by 600 MHz NMR spectrometry and identified as 16-O-demethyl fusicoccin J. The biosynthetic relationships among 16-O-demethyl fusicoccin J and its 3-epimer, and fusicoccin J are discussed in connection with the co-occurrence of both of the 3-epimers of 16-O-demethyl fusicoccin J. 16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM), the latter being slightly more active than the former.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

16-O-demethyl fusicoccin J showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM).

Taxon
lettuceLactuca sativae1
Organ / stage
seedse1
Treatment
16-O-Demethyl fusicoccin Je1
Outcome
germination-stimulating activitye1
Direction
lowe1
Qualifier
in the presence of abscisic acid (20 μM)e1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM), the latter being slightly more active than the former”

✓ located verbatim in the source · abstract, characters 599–808 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 3-epimer of 16-O-demethyl fusicoccin J showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM).

Taxon
lettuceLactuca sativae1
Organ / stage
seedse1
Treatment
3-epimere1
Outcome
germination-stimulating activitye1
Direction
lowe1
Qualifier
in the presence of abscisic acid (20 μM)e1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM), the latter being slightly more active than the former”

✓ located verbatim in the source · abstract, characters 599–808 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 3-epimer of 16-O-demethyl fusicoccin J was slightly more active than 16-O-demethyl fusicoccin J in stimulating lettuce seed germination.

Taxon
lettuceLactuca sativae1
Organ / stage
seedse1
Treatment
3-epimere1
Outcome
germination-stimulating activitye1
Direction
more activee1
Comparator
16-O-Demethyl fusicoccin Je1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds in the presence of abscisic acid (20 μM), the latter being slightly more active than the former”

✓ located verbatim in the source · abstract, characters 599–808 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A new derivative of fusicoccin J was isolated from the culture filtrate of Fusicoccum amygdali F6.

Taxon
lettuceLactuca sativae1
Material
Fusicoccum amygdali F6e2
Outcome
isolation of a new derivative of fusicoccin Je2
Setting
culture filtratee2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds”

✓ located verbatim in the source · abstract, characters 599–712 · show in text ↑
e2

“Our search for new metabolites biosynthetically related to fusicoccin with potent plant growth-stimulating activity from the culture filtrate of Fusicoccum amygdali F6 resulted in the isolation of a new derivative of fusicoccin J”

✓ located verbatim in the source · abstract, characters 0–229 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The structure of 16-O-demethyl fusicoccin J was identified by 600 MHz NMR spectrometry.

Taxon
lettuceLactuca sativae1
Outcome
identified as 16-O-demethyl fusicoccin Je3
Qualifier
600 MHz NMR spectrometrye3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“16-O-Demethyl fusicoccin J and its 3-epimer showed only low germination-stimulating activity toward lettuce seeds”

✓ located verbatim in the source · abstract, characters 599–712 · show in text ↑
e3

“Its structure was analyzed by 600 MHz NMR spectrometry and identified as 16-O-demethyl fusicoccin J”

✓ located verbatim in the source · abstract, characters 292–391 · show in text ↑

fusicoccin · growth · Lactuca sativa (garden lettuce)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.