Claim · model-written summary
The protonemal plates of Tetraphis are homologous with those of the allied genus Tetrodontium.
- Outcome
- homologous with those in the allied genus Tetrodontiume1
TetraphisNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tetraphis pellucida”
e1“The protonemal plates in Tetraphis are homologous with those in the allied genus Tetrodontium”
Title
Protonemal Morphogenesis of the Moss Tetraphis pellucida Hedw. in Culture and in the Wild
JAMIE A. GOODE; JEFFREY G. DUCKETT; ANTHONY D. STEAD Annals of Botany 1992. doi:10.1093/oxfordjournals.aob.a088512
Other claims from this paper (19)
- Observation Protonemal filaments in axenic culture share a mixture of attributes of chloronemata and caulonemata.
- Observation Tip cells contain cortical and endoplasmic microtubule arrays at interphase.
- Observation Phragmoplasts are associated with cell plate formation.
- Observation Pre-prophase bands are absent.
- Observation Protonemal plates originate from the same sites as filamentous protonemal side branches, or directly from young gemmae or excised stem fragments.
- Observation Protonemal plates have a cylindrical base, the latter produce a single gametophore bud, and a unistratose lamina.
- Intervention effect Gibberellic acid has no visible effect on protonemal morphogenesis.
- Intervention effect Naphthalene acetic acid suppresses plate and side branch formation.
- Intervention effect In the presence of kinetin the plates are callus-like.
- Intervention effect In the presence of kinetin the plates produce supernumerary buds.
- Intervention effect Abscisic acid induces malformed plates and filaments with swollen cells.
- Observation In nature, rhizoids are produced in abundance from gametophores and protonemal plates, but were never seen in culture.
- Observation In the wild, rhizoids produce numerous protonemal plates and occasional gametophore buds.
- Observation The protonemal plates are the main source of new shoots in the wild.
- Observation In nature, the filamentous protonemal phase mainly comprises upright filaments containing one or more abscission cells.
- Observation The protonemal plates of Tetraphis are very different from those of Diphyscium and Sphagnum.
- Observation The gametophores produce gemma cups in culture.
- Observation The vegetative life cycle takes approximately 28 d in culture.
- Mechanism Differences between culture and nature are attributed to lower nutrient levels and irradiances in the wild.