By organism › Green plants › Isoetaceae › Isoetes japonica

Observationobservedoriginal resultmeasured

Claim · model-written summary

Isoetes japonica had the lowest intrinsic relative growth rate and the lowest susceptibility, with an ED50 of 21 g ha −1.

Taxon: I . japonicaIsoetes japonicae0
Outcome: intrinsic relative growth rate (RGR) and the lowest susceptibilitye0
Direction: loweste0
Value: 21 g ha −1e0

Verbatim

e0
“I . japonica showed the lowest intrinsic relative growth rate (RGR) and the lowest susceptibility with an effective dose resulting in 50% growth inhibition (ED 50 ) of 21 g ha −1 .”
✓ located verbatim in the source · abstract, characters 848–1028

Title

Susceptibilities of some aquatic ferns to paddy herbicide bensulfuron methyl

MIKI AIDA; KAZUYUKI ITOH; HIROAKI IKEDA; et al. Weed Biology and Management 2004. doi:10.1111/j.1445-6664.2004.00129.x

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Basal and lateral meristems form a continuous single meristem.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: single meristeme0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“The basal (root‐producing) meristem of the rhizomorph is continuous with the lateral meristem, and both comprise a single meristem.”
✓ located verbatim in the source · abstract, characters 172–303

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Basal meristem has organogenetic and thickening attributes.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: both organogenetic and thickening meristem attributese0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“The basal meristem with a layer of thin initials has both organogenetic and thickening meristem attributes.”
✓ located verbatim in the source · abstract, characters 304–411

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Root primordia arise from young derivatives arranged in radial files and have a three-layered apical meristem.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: root primordiae0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“The root primordia develop from young derivative cells organized in three to four radial fines, and their main body is composed of a three‐layered apical meristem.”
✓ located verbatim in the source · abstract, characters 550–713

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observation Basal and lateral meristems form a continuous single meristem.
Observation Basal meristem has organogenetic and thickening attributes.
Observation Primordia produce derivatives, procambium and root cap but lack cortex and epidermis.
Observation Primordia shift toward the corm surface before becoming roots.
Observation The comparison does not support interpreting the roots as leaf homologues.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Primordia produce derivatives, procambium and root cap but lack cortex and epidermis.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: primordiae0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“The primordia, unlike the roots, produce a small number of derivative cells as well as a procambium and future root cap, and they do not form a cortex and epidermis.”
✓ located verbatim in the source · abstract, characters 714–879

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Primordia shift toward the corm surface before becoming roots.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: primordia are shifted closer to the corm surfacee0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“Prior to developing into roots, the primordia are shifted closer to the corm surface through further development of cortical tissues from the basal meristem and sloughing of surface cells.”
✓ located verbatim in the source · abstract, characters 880–1068

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The comparison does not support interpreting the roots as leaf homologues.

Taxon: Isoetes asiatica and Isoetes japonicaIsoetes asiaticaIsoetes japonicat0
Outcome: interpretation of the roots as leaf homologuese0

Verbatim

t0
“Isoetes asiatica and Isoetes japonica”
✓ located verbatim in the source · title, characters 39–76

e0
“The comparison seems not to support the interpretation of the roots as leaf homologues.”
✓ located verbatim in the source · abstract, characters 1418–1505

Title

Basal Meristem and Root Development in Isoetes asiatica and Isoetes japonica

Sun‐Young Yi; Masahiro Kato International Journal of Plant Sciences 2001. doi:10.1086/322942

Other claims from this paper (5)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Hexaploid I. japonica formed 33 bivalents.

Taxon: I. japonicaIsoetes japonicae0
Material: hexaploide0
Outcome: bivalentse0
Value: 33e0

Verbatim

t0
“Isoetes”
✓ located verbatim in the source · title, characters 35–42

e0
“The hexaploid (2 n = 66) and the octaploid (2 n = 88) of I. japonica consistently formed 33 and 44 bivalents, respectively”
✓ located verbatim in the source · abstract, characters 75–197

Title

Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan. II. Meiotic behavior and REPRODUCTIVE MODE OF EACH CYTOTYPE

Masayuki Takamiya; Mitsuru Watanabe; Kanji Ono American Journal of Botany 1996. doi:10.1002/j.1537-2197.1996.tb13915.x

Other claims from this paper (11)

Observation Octaploid I. japonica formed 44 bivalents.
Observation Tetraploid I. sinensis formed 22 bivalents.
Observation Hexaploid I. sinensis formed 33 bivalents.
Observation I. asiatica with 22 chromosomes formed 11 bivalents.
Mechanism Regular meiosis and normal spores suggest sexual reproduction in these cytotypes.
Observation Aneuploid I. japonica formed 43 bivalents and one univalent.
Observation Aneuploid I. sinensis formed 32 bivalents and one univalent.
Observation Both aneuploid cytotypes had nearly regular meiosis and normal-appearing microspores.
Observation Heptaploid I. japonica had 22 bivalents, 33 univalents and irregular meiotic divisions.
Mechanism The heptaploid was inferred to be a sterile hybrid of hexaploid and octaploid I. japonica.
Mechanism Allopolyploidy was inferred to be a significant speciation mechanism in Isoetes.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Octaploid I. japonica formed 44 bivalents.

Taxon: I. japonicaIsoetes japonicae0
Material: octaploide0
Outcome: bivalentse0
Value: 44e0

Verbatim

t0
“Isoetes”
✓ located verbatim in the source · title, characters 35–42

e0
“The hexaploid (2 n = 66) and the octaploid (2 n = 88) of I. japonica consistently formed 33 and 44 bivalents, respectively”
✓ located verbatim in the source · abstract, characters 75–197

Title

Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan. II. Meiotic behavior and REPRODUCTIVE MODE OF EACH CYTOTYPE

Masayuki Takamiya; Mitsuru Watanabe; Kanji Ono American Journal of Botany 1996. doi:10.1002/j.1537-2197.1996.tb13915.x

Other claims from this paper (11)

Observation Hexaploid I. japonica formed 33 bivalents.
Observation Tetraploid I. sinensis formed 22 bivalents.
Observation Hexaploid I. sinensis formed 33 bivalents.
Observation I. asiatica with 22 chromosomes formed 11 bivalents.
Mechanism Regular meiosis and normal spores suggest sexual reproduction in these cytotypes.
Observation Aneuploid I. japonica formed 43 bivalents and one univalent.
Observation Aneuploid I. sinensis formed 32 bivalents and one univalent.
Observation Both aneuploid cytotypes had nearly regular meiosis and normal-appearing microspores.
Observation Heptaploid I. japonica had 22 bivalents, 33 univalents and irregular meiotic divisions.
Mechanism The heptaploid was inferred to be a sterile hybrid of hexaploid and octaploid I. japonica.
Mechanism Allopolyploidy was inferred to be a significant speciation mechanism in Isoetes.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Aneuploid I. japonica formed 43 bivalents and one univalent.

Taxon: I. japonicaIsoetes japonicae0
Material: Aneuploidse0
Outcome: bivalents and one univalente0
Value: 43 bivalents and one univalente0

Verbatim

t0
“Isoetes”
✓ located verbatim in the source · title, characters 35–42

e0
“Aneuploids of I. japonica with 2 n = 87 formed 43 bivalents and one univalent”
✓ located verbatim in the source · abstract, characters 684–761

Title

Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan. II. Meiotic behavior and REPRODUCTIVE MODE OF EACH CYTOTYPE

Masayuki Takamiya; Mitsuru Watanabe; Kanji Ono American Journal of Botany 1996. doi:10.1002/j.1537-2197.1996.tb13915.x

Other claims from this paper (11)

Observation Hexaploid I. japonica formed 33 bivalents.
Observation Octaploid I. japonica formed 44 bivalents.
Observation Tetraploid I. sinensis formed 22 bivalents.
Observation Hexaploid I. sinensis formed 33 bivalents.
Observation I. asiatica with 22 chromosomes formed 11 bivalents.
Mechanism Regular meiosis and normal spores suggest sexual reproduction in these cytotypes.
Observation Aneuploid I. sinensis formed 32 bivalents and one univalent.
Observation Both aneuploid cytotypes had nearly regular meiosis and normal-appearing microspores.
Observation Heptaploid I. japonica had 22 bivalents, 33 univalents and irregular meiotic divisions.
Mechanism The heptaploid was inferred to be a sterile hybrid of hexaploid and octaploid I. japonica.
Mechanism Allopolyploidy was inferred to be a significant speciation mechanism in Isoetes.

Isoetes japonica 25 claims

25 claims