Claim · model-written summary
The 1:3 pollen-to-spore load was comparable to spore loads in open-pollinated S. acaulis flowers.
- Taxon
- S. acaulis
Silene acaulise1 - Treatment
- 1:3e0
- Outcome
- spore loadse0
- Comparator
- spore loads observed in open-pollinated flowerse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the spore loads used in both the 1:1 and 1:3 pollen/spore treatments were comparable to spore loads observed in open-pollinated flowers”
e1“S. acaulis pollen”
Title
The Effect of Microbotryum violaceum Spores on Pollen Germination in Silene acaulis
Deborah L. Marr International Journal of Plant Sciences 1998. doi:10.1086/297542
Other claims from this paper (8)
- Intervention effect Heterospecific Mertensia viridis pollen did not change S. acaulis pollen germination relative to pure pollen.
- Intervention effect Spore deposition significantly affected S. acaulis pollen germination.
- Intervention effect In female S. acaulis flowers, a 1:1 pollen-to-spore treatment significantly reduced pollen germination.
- Intervention effect In female S. acaulis flowers, a 1:3 pollen-to-spore treatment significantly reduced pollen germination.
- Intervention effect In hermaphroditic S. acaulis flowers, germinating pollen grains significantly decreased only at a 1:3 pollen-to-spore ratio.
- Mechanism The authors infer that M. violaceum inhibition of S. acaulis pollen germination is chemically mediated.
- Observation The 1:1 pollen-to-spore load was comparable to spore loads in open-pollinated S. acaulis flowers.
- Mechanism Fungal spores may exert selective pressure on S. acaulis microgametophytes in natural systems.