By organism › Green plants › Spirogyraceae

Observationobservedoriginal resultmeasured

Claim · model-written summary

Hydrilla, Chara, Spirogyra, Nymphaea, Nelumbo nucifera and Marsilea were the dominant wetland producers.

Taxon: Hydrilla, Chara, Spirogyra, Nymphaea, Nelumbo nucifera and Marsilea speciesSpirogyra NymphaeaNelumbo nuciferaCharaMarsileaHydrillae0
Outcome: Most dominant producers of wetlande0

Verbatim

e0
“Most dominant producers of wetland are Hydrilla, Chara, Spirogyra, Nymphaea, Nelumbo nucifera and Marsilea species”
✓ located verbatim in the source · abstract, characters 1552–1666

Title

Flora of Amahar Reservoir Wetland in Korea District, Chhattisgarh, India

Varun Kumar Kushwaha; Abinash Parida; Payal Mali; et al. International Journal of Environment and Climate Change 2026. doi:10.9734/ijecc/2026/v16i65485

Other claims from this paper (4)

Observation Marshy areas supported emergent, submerged and floating vegetation.
Observation Butomopsis latifolia grew abundantly near the shore.
Observation Cyperaceae and convolvulaceae species formed bushes and hedges near the shore.
Recommendation The authors recommend monitoring human activity and community awareness to sustain wetland biodiversity.

Observationobservedoriginal resultmeasured

Claim · model-written summary

LysM-RLKs are present in the zygnematophyte alga Spirogyra pratensis.

Taxon: Spirogyra pratensisSpirogyra pratensise0
Outcome: presence of LysM-RLKse0

Verbatim

e0
“Genomic analyses revealed the presence of LysM-RLKs in two streptophyte algal species, Charophyceae Chara braunii and Zygnematophyceae Spirogyra pratensis”
✓ located verbatim in the source · abstract, characters 828–982

Title

The origin and evolution of LysM receptor-like kinases in plants

Foo, Mung Hsia 2025

Other claims from this paper (9)

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Spirogyra spp. was a significant indicator species of golf course ponds.

Taxon: Spirogyra spp.Spirogyrae0
Outcome: indicator species of golf course pondse0
Setting: golf course pondse0

Not reportedDirection

Verbatim

e0
“whereas Spirogyra spp. was a significant indicator species of golf course ponds”
✓ located verbatim in the source · abstract, characters 1362–1441

Title

Macrophytes and Atrazine in Ponds of Southwest Missouri

Christine Michelle Cornish BearWorks (Missouri State University) 2018

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Spirogyra was one of only two algal taxa found in the spring basin.

Taxon: SpirogyraSpirogyrae0
Outcome: found in the spring basine0
Setting: spring basine0

Not reportedDirection

Verbatim

e0
“The only species of algae found in the spring basin were Chara and Spirogyra”
✓ located verbatim in the source · abstract, characters 1213–1289

Title

An ecological study of the algae and mosses of Cascade Springs, Wasatch County, Utah

DeAnna Lynn McCoard ScholarsArchive (Brigham Young University) 1967

Other claims from this paper (19)

Observation The spring water environment was very constant.
Observation Measurements at different study sites were consistently similar within days and throughout the year.
Observation Spring topography varied greatly in bottom composition, sunlight and water depth.
Observation Spring topography varied in water velocity and volume.
Observation Algal species richness was low despite the apparent variety of ecological niches.
Observation Moss species richness was low despite the apparent variety of ecological niches.
Observation Twelve algal genera were collected.
Observation Fourteen algal species were collected.
Observation Ten moss genera were collected.
Observation Thirteen moss species were collected.
Observation All algal species occupied the terrace region, including edges and pools.
Observation All algae except Vaucheria were reported in terrace pools, although the text later states none were found there.
Observation All algae except Chara were found on the terrace edge.
Observation Chara was one of only two algal taxa found in the spring basin.
Observation All moss species except one occurred in the spring basin.
Observation Algae were most abundant in spring and summer despite constant water temperatures.
Observation Algae were least abundant in winter despite constant water temperatures.
Observation Mosses were perennial and constant in abundance and location; other moss species were common in Utah.
Observation Plectonema tomasinianum was abundant and unique to the spring, uncollected elsewhere in Utah; the other algae were common in Utah.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Mean DNA content per cell in Spirogyra sp. is 2.9 ×10-9 mg.

Taxon: Spirogyra sp.Spirogyrae7
Outcome: DNA content per celle7
Value: 2.9e7
Qualifier: ×10-9mge7

Verbatim

e7
“Mean values of DNA content per cell in Oscillatoria limosa, Spirogyra sp. and Marchantia polymorpha are 8.1, 2.9 and 0.48×10-9mg respectively”
✓ located verbatim in the source · abstract, characters 1313–1454

Title

A Cytochemical Study of Nucleic Acids in Plant Cells

Masahiro Rue Ishida CYTOLOGIA 1961. doi:10.1508/cytologia.26.359

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Spirogyra ellipsospora cells increased in volume when freeze-dried and embedded in glycerin in vacuo.

Taxon: Spirogyra ellipsosporaSpirogyra ellipsosporae0
Treatment: freezedried and embedded in glycer in in vacuoe0
Outcome: volumee0
Direction: increasede0

Verbatim

e0
“In Spirogyra ellipsospora, the cells increased in volume when they were freezedried and embedded in glycer in in vacuo”
✓ located verbatim in the source · abstract, characters 269–387

Title

Application of Freeze-drying Method to Plant Cells

Hisako MIKI; Hideo YAMAGISHI Shokubutsugaku Zasshi 1960. doi:10.15281/jplantres1887.73.29

Other claims from this paper (6)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In freeze-dried Spirogyra cells the chromatophores were not segmented, whereas they were often segmented in cells stained, dehydrated and mounted in Canada balsam after freezing and drying.

Taxon: Spirogyra ellipsosporaSpirogyra ellipsosporae0
Treatment: freezedried and embedded in glycer in in vacuoe0
Outcome: chromatophores were not segmentede0
Comparator: stained, dehydrated and mounted in Canada balsam after frozen and driede1

Not reportedDirection

Verbatim

e0
“In Spirogyra ellipsospora, the cells increased in volume when they were freezedried and embedded in glycer in in vacuo. In these cells, chromatophores were not segmented and their serrated margins were well preserved”
✓ located verbatim in the source · abstract, characters 269–485

e1
“while chromatophores were often segmented when the cells were stained, dehydrated and mounted in Canada balsam after frozen and dried”
✓ located verbatim in the source · abstract, characters 487–620

Title

Application of Freeze-drying Method to Plant Cells

Hisako MIKI; Hideo YAMAGISHI Shokubutsugaku Zasshi 1960. doi:10.15281/jplantres1887.73.29

Other claims from this paper (6)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Serrated margins of the chromatophores were well preserved in freeze-dried Spirogyra cells.

Taxon: Spirogyra ellipsosporaSpirogyra ellipsosporae0
Treatment: freezedried and embedded in glycer in in vacuoe0
Outcome: serrated margins were well preservede0
Comparator: stained, dehydrated and mounted in Canada balsam after frozen and driede1

Not reportedDirection

Verbatim

e0
“In Spirogyra ellipsospora, the cells increased in volume when they were freezedried and embedded in glycer in in vacuo. In these cells, chromatophores were not segmented and their serrated margins were well preserved”
✓ located verbatim in the source · abstract, characters 269–485

e1
“while chromatophores were often segmented when the cells were stained, dehydrated and mounted in Canada balsam after frozen and dried”
✓ located verbatim in the source · abstract, characters 487–620

Title

Application of Freeze-drying Method to Plant Cells

Hisako MIKI; Hideo YAMAGISHI Shokubutsugaku Zasshi 1960. doi:10.15281/jplantres1887.73.29

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Spirogyra nuclei lacked a thymusnucleic acid reaction but showed a protein reaction.

Taxon: Spirogyra sp.Spirogyrae0
Organ / stage: nucleuse0
Outcome: no thymusnucleic acid reaction but a protein reactione0

Verbatim

e0
“The nucleus of Spirogyra sp. shows no thymusnucleic acid reaction but a protein reaction”
✓ located verbatim in the source · abstract, characters 1175–1263

Title

A Histochemical Study of Plant Nuclei in Rest and Mitosis

Namio Shinke; Michio Shigenaga CYTOLOGIA 1933. doi:10.1508/cytologia.4.189

Other claims from this paper (8)

Spirogyraceae 9 claims

9 claims