Abstract
Phytochrome has been isolated from the green alga Mesotaenium and the liverwort Sphaerocarpos. The Mesotaenium pigment had absorption peaks at 649 and 710 nm for the P(R) and P(FR) forms, respectively. Corresponding difference spectrum maxima for the Sphaerocarpos pigment were at 655 and 720 nm. While the absorption maxima differ, the reversibility and efficiency with which red and far-red light transform the Mesotaenium pigment are very similar to that reported for phytochrome isolated from etiolated seedlings of higher plants. Methods are described which allow efficient separation of phytochrome from highly pigmented light-grown material.
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Claims 5
Claim · model-written summary
The Mesotaenium pigment had absorption peaks at 649 and 710 nm for the Pr and Pfr forms.
- Taxon
- Mesotaenium
Mesotaeniume1 - Outcome
- absorption peakse1
- Value
- 649 and 710 nme1
- Qualifier
- for the P(R) and P(FR) formse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The Mesotaenium pigment had absorption peaks at 649 and 710 nm for the P(R) and P(FR) forms, respectively”
Claim · model-written summary
The Sphaerocarpos pigment had difference spectrum maxima at 655 and 720 nm.
- Taxon
- Sphaerocarpos
Sphaerocarpose2 - Outcome
- difference spectrum maximae2
- Value
- 655 and 720 nme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Liverwort Sphaerocarpos”
e2“Corresponding difference spectrum maxima for the Sphaerocarpos pigment were at 655 and 720 nm”
Claim · model-written summary
Red and far-red light transformed the Mesotaenium pigment with reversibility and efficiency very similar to phytochrome from etiolated higher-plant seedlings.
- Taxon
- MesotaeniumMesotaeniume3
- Treatment
- red and far-red lighte3
- Outcome
- reversibility and efficiencye3
- Direction
- very similare3
- Comparator
- phytochrome isolated from etiolated seedlings of higher plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“While the absorption maxima differ, the reversibility and efficiency with which red and far-red light transform the Mesotaenium pigment are very similar to that reported for phytochrome isolated from etiolated seedlings of higher plants”
Claim · model-written summary
The absorption maxima of the Sphaerocarpos and Mesotaenium pigments differ.
- Taxon
- SphaerocarposSphaerocarpost0
- Outcome
- absorption maximae3
- Direction
- differe3
- Comparator
- Mesotaenium pigmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Liverwort Sphaerocarpos”
e3“While the absorption maxima differ, the reversibility and efficiency with which red and far-red light transform the Mesotaenium pigment are very similar to that reported for phytochrome isolated from etiolated seedlings of higher plants”
Claim · model-written summary
The described methods allow efficient separation of phytochrome from highly pigmented light-grown Sphaerocarpos material.
- Taxon
- SphaerocarposSphaerocarpost0
- Outcome
- efficient separation of phytochromee4
- Qualifier
- from highly pigmented light-grown materiale4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Liverwort Sphaerocarpos”
e4“Methods are described which allow efficient separation of phytochrome from highly pigmented light-grown material”