4/6/2024 0 Comments Spore dr pepper![]() Each phase may be affected by both internal factors, i.e. A dispersal event involving dispersal propagules can be divided in liberation, transport and deposition phases 3, 4, 5, 6. Overall, our results suggest that safe arrival on specific substrates is a more important driver of evolution in spore morphology than dispersal per se.ĭispersal plays a major role in the population dynamics of almost all organisms, and may, depending on the organism, involve mature individuals as well as dedicated dispersal propagules such as pollen, seeds and spores 1, 2. Elongated spore shapes are more common in saprotrophic taxa, and genera associated with above ground substrates are more likely to have allantoid (curved elongated) spores, probably to lower the risk of wash out by precipitation. This suggests that spore ornamentation facilitates attachment to arthropod vectors, which ectomycorrhizal species may need to reach lower soil layers. We show that both spore size and ornamentation are associated with trophic specialization, so that large and ornamented spores are more probable in ectomycorrhizal than in saprotrophic genera. We investigated whether trophic status and substrate associations are associated with morphology in 787 macrofungal genera. They show remarkable morphological diversity, but the underlying forces driving spore evolution are poorly known. Sexual spores are important for the dispersal and population dynamics of fungi. ![]()
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