Abstract
Young floral buds of a male sterile stamenless‐2 (sl‐2/sl‐2) mutant of tomato were cultured, at the sepal primordia stage, in a liquid Murashige and Skoog medium containing either benzylaminopurine (BAP) or gibberellic acid (GA 3 ) or both. In the basal medium (BM), the buds initiated petal and stamen primordia only and they showed limited development. In buds grown in BM supplemented with 10 –6 M BAP, all types of organ primordia were initiated but the petals remained small and the stamens and carpels were immature. Well‐developed flowers with a normal complement of floral organs were, however, produced in a medium containing both BAP (10 –6 M) and GA 3 (10 –7 M to 10 –5 M). The development of stamens was variable and ranged from the complete absence of microsporogenesis to the formation of abnormal pollen. Gynoecium development was normal and ovules with megaspores were produced in the ovary. The results show that male sterility in the sl‐2/sl‐2 mutant can be expressed in vitro and that GA 3 is essential for the in vitro growth and development of all the floral organs of this mutant.
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Claims 7
Claim · model-written summary
Basal medium permitted only petal and stamen primordia with limited development.
- Taxon
- tomato
Solanum lycopersicumt0 - Material
- STAMENLESS‐2t0
- Treatment
- basal medium (BM)e0
- Outcome
- petal and stamen primordia onlye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the basal medium (BM), the buds initiated petal and stamen primordia only and they showed limited development.”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
BAP allowed all organ primordia, but petals stayed small and stamens and carpels immature.
- Taxon
- TOMATOSolanum lycopersicumt0
- Material
- STAMENLESS‐2t0
- Treatment
- BM supplemented with 10 –6 M BAPe0
- Outcome
- all types of organ primordiae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In buds grown in BM supplemented with 10 –6 M BAP, all types of organ primordia were initiated but the petals remained small and the stamens and carpels were immature.”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
BAP plus GA 3 produced well developed flowers with normal floral organs.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- BAP (10 –6 M) and GA 3 (10 –7 M to 10 –5 M)e0
- Outcome
- Well‐developed flowers with a normal complement of floral organse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Well‐developed flowers with a normal complement of floral organs were, however, produced in a medium containing both BAP (10 –6 M) and GA 3 (10 –7 M to 10 –5 M).”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
Stamen development ranged from absent microsporogenesis to abnormal pollen.
- Taxon
- TOMATOSolanum lycopersicumt0
- Organ / stage
- stamense0
- Outcome
- complete absence of microsporogenesis to the formation of abnormal pollene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The development of stamens was variable and ranged from the complete absence of microsporogenesis to the formation of abnormal pollen.”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
The gynoecium developed normally and ovules with megaspores formed.
- Taxon
- TOMATOSolanum lycopersicumt0
- Organ / stage
- Gynoeciume0
- Outcome
- ovules with megaspores were produced in the ovarye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gynoecium development was normal and ovules with megaspores were produced in the ovary.”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
Male sterility of the mutant was expressed in vitro.
- Taxon
- TOMATOSolanum lycopersicumt0
- Material
- sl‐2/sl‐2e0
- Outcome
- male sterilitye0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“male sterility in the sl‐2/sl‐2 mutant can be expressed in vitro”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
Claim · model-written summary
The authors concluded that GA 3 is essential to in vitro growth and development of all floral organs.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- GA 3e0
- Outcome
- growth and development of all the floral organse0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA 3 is essential for the in vitro growth and development of all the floral organs of this mutant.”
t0“MALE STERILE STAMENLESS‐2 MUTANT OF TOMATO”
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See all 5 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.