Paper · 1984 · American Journal of Botany

SHOOT TIP CULTURE OF HELIANTHUS ANNUUS—FLOWERING AND DEVELOPMENT OF ADVENTITIOUS AND MULTIPLE SHOOTS

Karol E. Paterson

8
claims
14
verbatim quotes
60
citations
1
research areas
—
Not open access

Abstract

Shoot multiplication of Helianthus annuus was optimal from half shoot apices cultured on MS media with 0.1–1.0 mg/1 benzyl adenine or kinetin. Auxins inhibited multiplication and promoted callusing. Rooting was poor and was not promoted by auxins. Flowering of multiple shoots was observed after as little as 3 wk of culture. A number of plant growth regulators and environmental conditions had no effect on flowering which supports the determinate apex theory for sunflower (Habermann and Sekulow, 1972). Adventitious shoots were induced on leaves of the multiple shoots in some inbreds.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Half shoot apices on MS media with benzyl adenine gave optimal shoot multiplication.

Taxon
Helianthus annuusHelianthus annuuse0
Organ / stage
half shoot apicese0
Treatment
0.1–1.0 mg/1 benzyl adeninee0
Outcome
Shoot multiplicatione0
Direction
optimale0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Shoot multiplication of Helianthus annuus was optimal from half shoot apices cultured on MS media with 0.1–1.0 mg/1 benzyl adenine or kinetin.”

✓ located verbatim in the source · abstract, characters 0–142 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Half shoot apices on MS media with kinetin gave optimal shoot multiplication.

Taxon
Helianthus annuusHelianthus annuuse0
Treatment
kinetine0
Outcome
Shoot multiplicatione0
Direction
optimale0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Shoot multiplication of Helianthus annuus was optimal from half shoot apices cultured on MS media with 0.1–1.0 mg/1 benzyl adenine or kinetin.”

✓ located verbatim in the source · abstract, characters 0–142 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Auxins inhibited shoot multiplication.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Treatment
Auxinse0
Outcome
multiplicatione0
Direction
inhibitede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“Auxins inhibited multiplication and promoted callusing.”

✓ located verbatim in the source · abstract, characters 143–198 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Auxins promoted callusing.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Treatment
Auxinse0
Outcome
callusinge0
Direction
promotede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“Auxins inhibited multiplication and promoted callusing.”

✓ located verbatim in the source · abstract, characters 143–198 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Rooting was poor and was not promoted by auxins.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Treatment
auxinse0
Outcome
Rootinge0
Direction
not promotede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“Rooting was poor and was not promoted by auxins.”

✓ located verbatim in the source · abstract, characters 199–247 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Multiple shoots flowered after as little as three weeks in culture.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Organ / stage
multiple shootse0
Outcome
Floweringe0
Value
3 wke0

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“Flowering of multiple shoots was observed after as little as 3 wk of culture.”

✓ located verbatim in the source · abstract, characters 248–325 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Several growth regulators and environmental conditions had no effect on flowering.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Treatment
plant growth regulators and environmental conditionse0
Outcome
floweringe0
Direction
no effecte0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“A number of plant growth regulators and environmental conditions had no effect on flowering”

✓ located verbatim in the source · abstract, characters 326–417 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Adventitious shoots arose on leaves of multiple shoots in some inbreds.

Taxon
HELIANTHUS ANNUUSHelianthus annuust0
Material
some inbredse0
Organ / stage
leaves of the multiple shootse0
Outcome
Adventitious shootse0

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“HELIANTHUS ANNUUS”

✓ located verbatim in the source · title, characters 21–38 · show in text ↑
e0

“Adventitious shoots were induced on leaves of the multiple shoots in some inbreds.”

✓ located verbatim in the source · abstract, characters 506–588 · show in text ↑

kinetin · pest · Helianthus annuus (common sunflower)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 →

N-benzyladenine · pest · Helianthus annuus (common sunflower)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

class · growth · Helianthus annuus (common sunflower)Positive and negative results

25 papers: 19 positive, 6 negative or no effect

5 papers in the same direction as this paper · 19 in the opposite direction

  1. positive
  2. positive
  3. positive

21 papers more in this group

See all 25 papers →

class · pest · Helianthus annuus (common sunflower)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

class · phenology · Helianthus annuus (common sunflower)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

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

climate site · phenology · Helianthus annuus (common sunflower)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. no effect
  2. no effect
See all 3 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.