Paper · 1985 · Journal of the American Society for Horticultural Science

Regulation of in Vitro Shoot and Root Regeneration in ‘Macspur’ Apple by Sorbitol (D-Glucitol) and Related Carbon Sources

Eng-Chong Pua; Calvin Chong

7
claims
14
verbatim quotes
24
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract In vitro shoot proliferation and rooting of the apple scion cultivar ‘Macspur’ (mature culture) and of open-pollinated seedlings of ‘Macspur’ (seedling culture) were studied in response to the carbon sources, sorbitol, sucrose, glucose, and fructose, each supplied at 10, 30, 50, and 70 g/liter, or to the presence of varying proportions of sorbitol between 25% and 100% in conjunction with sucrose (30 g/liter total). Although the highest shoot number and shoot fresh weight of both cultures occurred with 30 g/liter sorbitol and sucrose, respectively, a medium with 25% sorbitol and 75% sucrose was best for shoot production. There was a decreasing trend in leaf/stem (fresh weight) ratio of shoots as the percentage of sorbitol increased in the medium. On rooting media supplied with 10–70 g/liter of each c source, rooting was best with 30 g/liter sucrose. In the mature culture (initially sucrose-grown), enhance shoot proliferation and rooting occurred on sorbitol medium after this source was subcultured 3 times on sorbitol medium.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Shoot number was highest with 30 g/liter sorbitol in both apple cultures.

Material
‘Macspur’e0
Treatment
30 g/liter sorbitole1
Outcome
shoot numbere1
Direction
higheste1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“the highest shoot number and shoot fresh weight of both cultures occurred with 30 g/liter sorbitol and sucrose, respectively”

✓ located verbatim in the source · abstract, characters 437–561 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Shoot fresh weight was highest with sucrose in both apple cultures.

Material
‘Macspur’e0
Treatment
sucrosee1
Outcome
shoot fresh weighte1
Direction
higheste1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“the highest shoot number and shoot fresh weight of both cultures occurred with 30 g/liter sorbitol and sucrose, respectively”

✓ located verbatim in the source · abstract, characters 437–561 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A medium with 25% sorbitol and 75% sucrose was best for shoot production.

Treatment
25% sorbitol and 75% sucrosee1
Outcome
shoot productione1
Direction
beste1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“a medium with 25% sorbitol and 75% sucrose was best for shoot production”

✓ located verbatim in the source · abstract, characters 563–635 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Leaf/stem fresh weight ratio decreased as sorbitol percentage increased.

Treatment
sorbitole1
Outcome
leaf/stem (fresh weight) ratio of shootse1
Direction
decreasinge1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“There was a decreasing trend in leaf/stem (fresh weight) ratio of shoots as the percentage of sorbitol increased in the medium.”

✓ located verbatim in the source · abstract, characters 637–764 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rooting was best with 30 g/liter sucrose.

Treatment
30 g/liter sucrosee1
Outcome
rootinge1
Direction
beste1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“rooting was best with 30 g/liter sucrose”

✓ located verbatim in the source · abstract, characters 828–868 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

After three subcultures on sorbitol medium, mature apple cultures showed enhanced shoot proliferation.

Material
‘Macspur’e0
Treatment
sorbitol mediume1
Outcome
shoot proliferatione1
Direction
enhancee1
Qualifier
subcultured 3 timese1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“In the mature culture (initially sucrose-grown), enhance shoot proliferation and rooting occurred on sorbitol medium after this source was subcultured 3 times on sorbitol medium.”

✓ located verbatim in the source · abstract, characters 870–1048 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

After three subcultures on sorbitol medium, mature apple cultures showed enhanced rooting.

Material
‘Macspur’e0
Treatment
sorbitol mediume1
Outcome
rootinge1
Direction
enhancee1
Qualifier
subcultured 3 timese1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“apple scion cultivar ‘Macspur’”

✓ located verbatim in the source · abstract, characters 57–87 · show in text ↑
e1

“In the mature culture (initially sucrose-grown), enhance shoot proliferation and rooting occurred on sorbitol medium after this source was subcultured 3 times on sorbitol medium.”

✓ located verbatim in the source · abstract, characters 870–1048 · show in text ↑

glucitol · yield · Malus domestica (apple)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

glucitol · growth · Malus domestica (apple)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

sucrose · growth · Malus domestica (apple)Positive and negative results

16 papers: 12 positive, 4 negative or no effect

11 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. no effect

12 papers more in this group

See all 16 papers →

in vitro · growth · Malus domestica (apple)Positive and negative results

38 papers: 34 positive, 4 negative or no effect

33 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. no effect
  3. negative

34 papers more in this group

See all 38 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.