Effect of environmental factors on fern spore germination
环境因子对蕨类植物孢子萌发的影响

Ferns produce spores that germinate to form gametophytes which live independently.The gametophytes later develop antheridia and archegonia and produce new sporophytes upon fertilization.Spore germination is a key step for ferns to switch from the gametophytic phase to the sporophytic phase.Spore germination also is a good single-cell model for exploration of cell nuclear polar movement,asymmetrical cell division,tip-growth of rhizoids and other unique cellular differentiation events.Furthermore,fern spore g...