Abstract
Ipomoea batatas explants were cultured on White's basal salt medium, with or without supplements, and grown under 500 ft-c, with a 12-hr photoperiod, at 25 C The amount of callus or number of roots formed depended upon tissue polarity, explant orientation, cultivar response, and culture medium A slight callus formed on the upper surface of explant cylinders, normally oriented and taken from the apical portions of the root Inverted cylinders and those from the median portion of the root formed heavy callus on the upper surface and relatively less on the lower surface The cultivar Centennial produced the most callus when grown on basal medium + indoleacetic acid (IAA) and 2,4-dichlorophenoxyacetic acid (2,4-D), while Jersey Orange produced only slightly less on the same medium Jersey Orange produced the most abundant callus on basal medium + IAA and adenine, more callus than Centennial Yellow Jersey produced the most abundant callus of the three cultivars studied when grown on basal medium + IAA and kinetin. The number of roots formed correlated well with the total amount of callus formed. Root formation also depended upon the cultivar and the medium-supplemented with CM, GA3, kinetin, adenine, and IAA or 2,4-D In strongly polar Yellow Jersey and Jersey Orange, roots grew best on normally oriented or inverted cylinders In the weakly polar Centennial cultivar, roots grew best on cylinders in a lateral position. Root-induction experiments suggested that naphthaleneacetic acid (NAA) did not substitute for IAA, and adenine did not substitute for kinetin Polarity may reflect an IAA-kinetin gradient, and sophisticated media may nullify inherent tissue polarity Shoots formed from Yellow Jersey callus on basal medium + coconut milk (CM), adenine, kinetin, gibberellic acid (GA3), and IAA, or even rarely from basal medium + IAA Centennial explants formed shoots on media with kinetin, GA3, IAA, or 2,4-D, and either CM or adenine Jersey Orange callus formed no shoots Shoots originated from apical callus or from the phloem-pericycle region of primary or lateral roots treated with 2,4-D
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Claims 19
Claim · model-written summary
Callus and root formation depended on polarity, orientation, cultivar and medium.
- Taxon
- Ipomoea batatas
_Flower.jpg?width=60)
Ipomoea batatase0 - Treatment
- culture mediume1
- Outcome
- amount of callus or number of roots formede1
- Qualifier
- tissue polarity, explant orientation, cultivar responsee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Ipomoea batatas explants were cultured on White's basal salt medium, with or without supplements”
e1“The amount of callus or number of roots formed depended upon tissue polarity, explant orientation, cultivar response, and culture medium”
Claim · model-written summary
Normally oriented apical root cylinders formed slight callus on their upper surface.
- Taxon
- Sweet PotatoIpomoea batatast0
- Organ / stage
- apical portions of the roote0
- Outcome
- A slight callus formed on the upper surfacee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“A slight callus formed on the upper surface of explant cylinders, normally oriented and taken from the apical portions of the root”
Claim · model-written summary
Inverted and median root cylinders formed heavy upper-surface callus and less lower-surface callus.
- Taxon
- Sweet PotatoIpomoea batatast0
- Organ / stage
- median portion of the roote0
- Outcome
- heavy callus on the upper surface and relatively less on the lower surfacee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Inverted cylinders and those from the median portion of the root formed heavy callus on the upper surface and relatively less on the lower surface”
Claim · model-written summary
Centennial produced the most callus with basal medium plus IAA and 2,4-D.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Centenniale0
- Treatment
- basal medium + indoleacetic acid (IAA) and 2,4-dichlorophenoxyacetic acid (2,4-D)e0
- Outcome
- calluse0
- Direction
- moste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“The cultivar Centennial produced the most callus when grown on basal medium + indoleacetic acid (IAA) and 2,4-dichlorophenoxyacetic acid (2,4-D)”
Claim · model-written summary
Jersey Orange produced slightly less callus than Centennial on the IAA and 2,4-D medium.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Jersey Orangee0
- Outcome
- slightly lesse0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“while Jersey Orange produced only slightly less on the same medium”
Claim · model-written summary
Jersey Orange produced the most callus with IAA and adenine, more than Centennial.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Jersey Orangee0
- Treatment
- basal medium + IAA and adeninee0
- Outcome
- calluse0
- Direction
- moree0
- Comparator
- Centenniale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Jersey Orange produced the most abundant callus on basal medium + IAA and adenine, more callus than Centennial”
Claim · model-written summary
Yellow Jersey produced the most callus among the three cultivars with IAA and kinetin.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Yellow Jerseye0
- Treatment
- basal medium + IAA and kinetine0
- Outcome
- calluse0
- Direction
- most abundante0
- Comparator
- three cultivars studiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Yellow Jersey produced the most abundant callus of the three cultivars studied when grown on basal medium + IAA and kinetin”
Claim · model-written summary
Root number correlated with total callus amount.
- Taxon
- Sweet PotatoIpomoea batatast0
- Organ / stage
- rootse0
- Outcome
- number of roots formede0
- Qualifier
- total amount of callus formede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“The number of roots formed correlated well with the total amount of callus formed”
Claim · model-written summary
Root formation depended on cultivar and medium supplements.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- medium-supplemented with CM, GA3, kinetin, adenine, and IAA or 2,4-De0
- Outcome
- Root formatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Root formation also depended upon the cultivar and the medium-supplemented with CM, GA3, kinetin, adenine, and IAA or 2,4-D”
Claim · model-written summary
Yellow Jersey roots grew best on normally oriented or inverted cylinders.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Yellow Jerseye0
- Outcome
- roots grew beste0
- Direction
- beste0
- Qualifier
- normally oriented or inverted cylinderse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“In strongly polar Yellow Jersey and Jersey Orange, roots grew best on normally oriented or inverted cylinders”
Claim · model-written summary
Jersey Orange roots grew best on normally oriented or inverted cylinders.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Jersey Orangee0
- Outcome
- roots grew beste0
- Direction
- beste0
- Qualifier
- normally oriented or inverted cylinderse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“In strongly polar Yellow Jersey and Jersey Orange, roots grew best on normally oriented or inverted cylinders”
Claim · model-written summary
Centennial roots grew best on laterally positioned cylinders.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Centenniale0
- Outcome
- roots grew beste0
- Direction
- beste0
- Qualifier
- cylinders in a lateral positione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“In the weakly polar Centennial cultivar, roots grew best on cylinders in a lateral position”
Claim · model-written summary
NAA did not substitute for IAA in root induction.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- naphthaleneacetic acid (NAA)e0
- Outcome
- Root-inductione0
- Direction
- did not substitutee0
- Comparator
- IAAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Root-induction experiments suggested that naphthaleneacetic acid (NAA) did not substitute for IAA”
Claim · model-written summary
Adenine did not substitute for kinetin in root induction.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- adeninee0
- Outcome
- did not substitutee0
- Direction
- did not substitutee0
- Comparator
- kinetine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“adenine did not substitute for kinetin”
Claim · model-written summary
The authors suggest polarity may reflect an IAA-kinetin gradient and complex media may erase tissue polarity.
- Taxon
- Sweet PotatoIpomoea batatast0
- Outcome
- inherent tissue polaritye0
- Qualifier
- IAA-kinetin gradiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Polarity may reflect an IAA-kinetin gradient, and sophisticated media may nullify inherent tissue polarity”
Claim · model-written summary
Yellow Jersey callus formed shoots with a supplemented basal medium and rarely with basal medium plus IAA.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Yellow Jerseye0
- Treatment
- basal medium + coconut milk (CM), adenine, kinetin, gibberellic acid (GA3), and IAAe0
- Outcome
- Shoots formede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Shoots formed from Yellow Jersey callus on basal medium + coconut milk (CM), adenine, kinetin, gibberellic acid (GA3), and IAA, or even rarely from basal medium + IAA”
Claim · model-written summary
Centennial explants formed shoots on media with kinetin, GA3, IAA or 2,4-D and CM or adenine.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Centenniale0
- Treatment
- media with kinetin, GA3, IAA, or 2,4-D, and either CM or adeninee0
- Outcome
- formed shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Centennial explants formed shoots on media with kinetin, GA3, IAA, or 2,4-D, and either CM or adenine”
Claim · model-written summary
Jersey Orange callus formed no shoots.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- Jersey Orangee0
- Outcome
- formed no shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Jersey Orange callus formed no shoots”
Claim · model-written summary
Shoots originated from apical callus or the phloem-pericycle region of 2,4-D-treated roots.
- Taxon
- Sweet PotatoIpomoea batatast0
- Organ / stage
- primary or lateral rootse0
- Outcome
- Shoots originated from apical callus or from the phloem-pericycle regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweet Potato”
e0“Shoots originated from apical callus or from the phloem-pericycle region of primary or lateral roots treated with 2,4-D”
The same questions in other papers
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- negative
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See all 7 papers →indole-3-acetic acid · growth · Ipomoea batatas (sweet potato)Results agree
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- positive
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See all 7 papers →in vitro · growth · Ipomoea batatas (sweet potato)Positive and negative results
28 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
28 papers more in this group
See all 32 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.