Claim · model-written summary
Some antheridial cells differentiated into sperm.
- Taxon
- Asplenium nidus L.
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Asplenium nidust0 - Organ / stage
- antheridiae0
- Outcome
- differentiated to be sperme0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Some cells within the antheridia differentiated to be sperm whereas a single cell developed to an egg within archegonium.”
t0“Asplenium nidus L.”
Title
Study on structure and life cycle of Asplenium nidus L.
Chantana Sookpreedee; Lily Kaveeta; Krongtong Imjard 1999
Other claims from this paper (14)
- Observation The life cycle alternated between haploid gametophyte and diploid sporophyte generations.
- Observation The attached sporophyte separated from the gametophyte after three months.
- Observation The sporophyte produced bean-shaped homospores in oval sporangia under fronds.
- Observation At maturity, annulus contraction forcibly discharged spores.
- Observation Protonema appeared one month after culture.
- Observation Heart-shaped prothallium appeared four months after culture.
- Observation Mature gametophytes appeared six months after culture.
- Observation Mature gametophytes bore male and female reproductive organs.
- Observation Antheridia occurred throughout the prothallium and clustered near rhizoids.
- Observation Archegonia occurred only at the apical notch.
- Observation A single archegonial cell developed into an egg.
- Observation Fusion of sperm and egg formed a zygote that developed into embryo and young sporophyte.
- Observation Young sporophyte development lasted about nine months in culture.
- Intervention effect Chopped Platycerium media improved fern growth compared with soil.