By organism › Green plants › Poaceae › Urochloa texana

Observationobservedoriginal resultmeasured

Claim · model-written summary

Urochloa texana has Kranz anatomy with granal chloroplasts scattered in bundle sheath cells.

Taxon: Urochloa texanaUrochloa texanae0
Outcome: typical Kranz anatomy with granal chloroplasts scattered around the cytoplasm in bundle sheath (BS) cellse0

Verbatim

e0
“Urochloa texana has typical Kranz anatomy with granal chloroplasts scattered around the cytoplasm in bundle sheath (BS) cells”
✓ located verbatim in the source · abstract, characters 674–799

Title

Functional Characterization of Phosphoenolpyruvate Carboxykinase-Type C4 Leaf Anatomy: Immuno-, Cytochemical and Ultrastructural Analyses

ELENA V. VOZNESENSKAYA; VINCENT R. FRANCESCHI; SIMON D. X. CHUONG; et al. Annals of Botany 2006. doi:10.1093/aob/mcl096

Other claims from this paper (7)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Rubisco activity ratio in B. texana fell sharply below 400 to 500 photon units.

Taxon: B. texanaUrochloa texanae0
Treatment: light intensity of 400 to 500 [mu]mol of photons m-2 s-1e0
Outcome: activity ratioe0
Direction: declinede0

Not reportedComparator

Verbatim

e0
“In A. retroflexus and B. texana, the activity ratio declined dramatically below a light intensity of 400 to 500 [mu]mol of photons m-2 s-1”
✓ located verbatim in the source · abstract, characters 1259–1397

Title

Regulation of Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase Activity in Response to Reduced Light Intensity in C4 Plants

R. F. Sage; J. R. Seemann PLANT PHYSIOLOGY 1993. doi:10.1104/pp.102.1.21

Other claims from this paper (9)

Intervention effect Rubisco activity ratio declined with reduced light in all species.
Association Rubisco deactivation did not relate to C4 subtype.
Observation Dicots generally deactivated Rubisco more than monocots.
Association Total Rubisco activity per catalytic site was generally independent of light intensity.
Intervention effect Rubisco activity ratio in A. retroflexus fell sharply below 400 to 500 photon units.
Association Z. mays Rubisco activity ratio was relatively insensitive to light intensity.
Intervention effect A. retroflexus RuBP pool generally declined under reduced light except between 50 and 500 units.
Association Z. mays RuBP pool size depended on light only below 350 units.
Mechanism Most C4 species regulate Rubisco through reversible carbamylation in response to light.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Both grasses produced more tillers, leaf area and dry weight at 30/24 C than 24/18 C.

Taxon: Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)Panicum miliaceumUrochloa texanat0
Treatment: 30/24 C day/nighte0
Outcome: tillers, greater leaf area, and more total dry weighte0
Direction: moree0
Comparator: 24/18 Ce0

Verbatim

e0
“both species produced more tillers, greater leaf area, and more total dry weight at 30/24 C day/night (simulated growing season temperature in Georgia) than at 24/18 C (simulated growing season temperature in Minnesota)”
✓ located verbatim in the source · abstract, characters 318–537

t0
“Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)”
✓ located verbatim in the source · title, characters 42–115

Title

Effects of Temperature and Photoperiod on Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)

David T. Patterson; Ann E. Russell; David A. Mortensen; et al. Weed Science 1986. doi:10.1017/s004317450006803x

Other claims from this paper (9)

Observation Texas panicum accumulated more dry matter than wild proso millet at 30/24 C.
Observation Wild proso millet accumulated more dry matter than Texas panicum at 24/18 C.
Observation Texas panicum was the stronger competitor at 30/24 C.
Observation Wild proso millet was the stronger competitor at 24/18 C.
Intervention effect Short photoperiods accelerated flowering in both species.
Intervention effect Short photoperiods limited vegetative growth in both species.
Observation Wild proso millet flowered earlier than Texas panicum across photoperiods of 10 to 16 h.
Observation Wild proso millet produced less vegetative growth than Texas panicum.
Observation Authors infer wild proso millet would be competitively inferior in the southern United States.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Short photoperiods accelerated flowering in both species.

Taxon: Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)Panicum miliaceumUrochloa texanat0
Treatment: short photoperiodse0
Outcome: floweringe0
Direction: acceleratede0
Qualifier: 27/21 Ce0

Not reportedComparator

Verbatim

e0
“Exposure to short photoperiods at an intermediate temperature of 27/21 C accelerated flowering and limited vegetative growth in both species”
✓ located verbatim in the source · abstract, characters 851–991

t0
“Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)”
✓ located verbatim in the source · title, characters 42–115

Title

Effects of Temperature and Photoperiod on Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)

David T. Patterson; Ann E. Russell; David A. Mortensen; et al. Weed Science 1986. doi:10.1017/s004317450006803x

Other claims from this paper (9)

Intervention effect Both grasses produced more tillers, leaf area and dry weight at 30/24 C than 24/18 C.
Observation Texas panicum accumulated more dry matter than wild proso millet at 30/24 C.
Observation Wild proso millet accumulated more dry matter than Texas panicum at 24/18 C.
Observation Texas panicum was the stronger competitor at 30/24 C.
Observation Wild proso millet was the stronger competitor at 24/18 C.
Intervention effect Short photoperiods limited vegetative growth in both species.
Observation Wild proso millet flowered earlier than Texas panicum across photoperiods of 10 to 16 h.
Observation Wild proso millet produced less vegetative growth than Texas panicum.
Observation Authors infer wild proso millet would be competitively inferior in the southern United States.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Short photoperiods limited vegetative growth in both species.

Taxon: Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)Panicum miliaceumUrochloa texanat0
Treatment: short photoperiodse0
Outcome: vegetative growthe0
Direction: limitede0
Qualifier: 27/21 Ce0

Not reportedComparator

Verbatim

e0
“Exposure to short photoperiods at an intermediate temperature of 27/21 C accelerated flowering and limited vegetative growth in both species”
✓ located verbatim in the source · abstract, characters 851–991

t0
“Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)”
✓ located verbatim in the source · title, characters 42–115

Title

Effects of Temperature and Photoperiod on Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)

David T. Patterson; Ann E. Russell; David A. Mortensen; et al. Weed Science 1986. doi:10.1017/s004317450006803x

Other claims from this paper (9)

Intervention effect Both grasses produced more tillers, leaf area and dry weight at 30/24 C than 24/18 C.
Observation Texas panicum accumulated more dry matter than wild proso millet at 30/24 C.
Observation Wild proso millet accumulated more dry matter than Texas panicum at 24/18 C.
Observation Texas panicum was the stronger competitor at 30/24 C.
Observation Wild proso millet was the stronger competitor at 24/18 C.
Intervention effect Short photoperiods accelerated flowering in both species.
Observation Wild proso millet flowered earlier than Texas panicum across photoperiods of 10 to 16 h.
Observation Wild proso millet produced less vegetative growth than Texas panicum.
Observation Authors infer wild proso millet would be competitively inferior in the southern United States.

Observationobservedoriginal resultmeasured

Claim · model-written summary

P. texanum had the same cytoplasmic PEP carboxykinase localization and lack of intact-chloroplast activity.

Taxon: P. texanumUrochloa texanae0
Gene: PEP carboxykinasee1
Outcome: same resultse0

Verbatim

e0
“The same results were obtained with P. texanum, C. gayana and E. borumensis.”
✓ located verbatim in the source · abstract, characters 788–864

e1
“PEP carboxykinase activity was not recovered in the intact chloroplasts”
✓ located verbatim in the source · abstract, characters 715–786

Title

Intracellular Localization of Phosphoenolpyruvate Carboxykinase in Bundle Sheath Cells of C₄ Plants

Masanao Watanabe; Jun-ichi Ohnishi; Ryuzi Kanai Plant and Cell Physiology 1984. doi:10.1093/oxfordjournals.pcp.a076698

Other claims from this paper (4)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The enzyme in three Panicum species retained 60 to 85% activity after 60 min at 0°C.

Taxon: Panicum miliaceum, Panicum maximum and Panicum texanumPanicum miliaceumMegathyrsus maximusUrochloa texanae0
Outcome: activitye0
Value: 60 to 85% activity after 60 min at 0°Ce0

Verbatim

e0
“In other species (Panicum miliaceum, Panicum maximum and Panicum texanum), the enzyme was very cold tolerant (retention of 60 to 85% activity after 60 min at 0°C and 90% activity after 60 min at 10°C).”
✓ located verbatim in the source · abstract, characters 460–661

Title

Differences in cold lability of pyruvate, Pi dikinase among C₄ species

T. Sugiyama; M. R. Schmitt; S. B. Ku; et al. Plant and Cell Physiology 1979. doi:10.1093/oxfordjournals.pcp.a075891

Other claims from this paper (3)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The enzyme in three Panicum species retained 90% activity after 60 min at 10°C.

Taxon: Panicum miliaceum, Panicum maximum and Panicum texanumPanicum miliaceumMegathyrsus maximusUrochloa texanae0
Outcome: activitye0
Value: 90% activity after 60 min at 10°Ce0

Verbatim

e0
“In other species (Panicum miliaceum, Panicum maximum and Panicum texanum), the enzyme was very cold tolerant (retention of 60 to 85% activity after 60 min at 0°C and 90% activity after 60 min at 10°C).”
✓ located verbatim in the source · abstract, characters 460–661

Title

Differences in cold lability of pyruvate, Pi dikinase among C₄ species

T. Sugiyama; M. R. Schmitt; S. B. Ku; et al. Plant and Cell Physiology 1979. doi:10.1093/oxfordjournals.pcp.a075891

Other claims from this paper (3)

Urochloa texana 8 claims

8 claims