Paper · 1969 · Journal of Experimental Botany

The Effect of Growth-regulating Substances and Light on Olive Callus Growthin vitro

S. LAVEE; GLENDA MESSER

7
claims
14
verbatim quotes
27
citations
3
research areas
—
Not open access

Abstract

In vitro olive callus cultures were established; auxin was not obligatory for the early development of the callus. However, after a number of subcultures, both an auxin and a cytokinin were needed for growth. IAA was the most efficient auxin in inducing growth, although 2,4-D was also very active. Very short periods of red-light illumination were sufficient to effect greening of the tissue. A particularly high ratio of chlorophyll b/a was found under all light conditions tested. All light treatments stimulating chlorophyll synthesis caused a reduction in growth after four subcultures.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 7

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Auxin was not obligatory for early callus development of olive in vitro.

Taxon
oliveOlea europaeae0
Treatment
auxine1
Outcome
early development of the calluse1

Not reportedComparatorDirection

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e1

“auxin was not obligatory for the early development of the callus”

✓ located verbatim in the source · abstract, characters 49–113 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

After several subcultures, both an auxin and a cytokinin were needed for olive callus growth.

Taxon
oliveOlea europaeae0
Treatment
an auxin and a cytokinine2
Outcome
growthe2
Direction
needede2
Qualifier
after a number of subculturese2

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e2

“after a number of subcultures, both an auxin and a cytokinin were needed for growth”

✓ located verbatim in the source · abstract, characters 124–207 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

IAA was the most efficient auxin in inducing olive callus growth.

Taxon
oliveOlea europaeae0
Treatment
IAAe3
Outcome
growthe3
Direction
most efficiente3

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e3

“IAA was the most efficient auxin in inducing growth, although 2,4-D was also very active”

✓ located verbatim in the source · abstract, characters 209–297 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2,4-D was also very active in inducing olive callus growth.

Taxon
oliveOlea europaeae0
Treatment
2,4-De3
Outcome
growthe3
Direction
very activee3

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e3

“IAA was the most efficient auxin in inducing growth, although 2,4-D was also very active”

✓ located verbatim in the source · abstract, characters 209–297 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Very short periods of red-light illumination were sufficient to green olive callus tissue.

Taxon
oliveOlea europaeae0
Treatment
Very short periods of red-light illuminatione4
Outcome
greening of the tissuee4

Not reportedComparatorDirection

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e4

“Very short periods of red-light illumination were sufficient to effect greening of the tissue”

✓ located verbatim in the source · abstract, characters 299–392 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Olive callus under all light conditions tested had a particularly high chlorophyll b/a ratio.

Taxon
oliveOlea europaeae0
Outcome
ratio of chlorophyll b/ae5
Qualifier
under all light conditions testede5

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e5

“A particularly high ratio of chlorophyll b/a was found under all light conditions tested”

✓ located verbatim in the source · abstract, characters 394–482 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Light treatments stimulating chlorophyll synthesis reduced olive callus growth after four subcultures.

Taxon
oliveOlea europaeae0
Treatment
All light treatments stimulating chlorophyll synthesise6
Outcome
growthe6
Direction
reductione6
Qualifier
after four subculturese6

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In vitro olive callus cultures were established”

✓ located verbatim in the source · abstract, characters 0–47 · show in text ↑
e6

“All light treatments stimulating chlorophyll synthesis caused a reduction in growth after four subcultures”

✓ located verbatim in the source · abstract, characters 484–590 · show in text ↑

indole-3-acetic acid · growth · Olea europaea (common olive)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive
See all 4 papers →

2,4-D · growth · Olea europaea (common olive)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

light · growth · Olea europaea (common olive)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

1 paper in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

class · growth · Olea europaea (common olive)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.