Growth and defence in a unicellular microalga: the coexistence of r and K strategies
Liu, L.; Tang, S.; Liu, Y.; Zhang, B.; Zhong, Y.; Liu, D.; Zhou, J.; Cai, Z.
Show abstract
r (high reproductivity but stress-sensitive offspring) and K (low reproductivity but high stress-resistant offspring) strategies are two classical life history theories. Contrary to the belief that one species only has a single strategy (i.e., either r or K), we present experimental evidence for the coexistence of both strategies in the isogenic microalga Haematococcus lacustris. Under standard conditions, swimming vegetative cells (SVC) normally grew and divided via binary fission (r strategy) and gradually shifted into non-swimming cysts (NSC) over time. Intriguingly, unlike the prevailing notion that NSC cannot propagate under stress, they were found to reproduce via multiple fission at a barely detectable growth rate, resulting in stress-resistant, non-mobile daughter cells and demonstrating a complete life history (K strategy). Collectively, our findings indicate that H. lacustris adopts both r and K strategies throughout its life history. This research enhances the understanding of the adaptation and survival of microbial populations in changing environments.
Matching journals
The top 4 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Congruence between noise and plasticity in protein expression 95%
- Cas9-mediated Genome Editing Reveals a Significant Contribution of Calcium Signaling Pathways to Anhydrobiosis in Pv11 94%
- Functional roles of multiple Ton complex genes in a Sphingobium degrader of lignin-derived aromatic compounds 94%
Similar papers in this journal
- Unprecedented biomass and fatty acid production by the newly discovered cyanobacterium Synechococcus sp. PCC 11901 95%
- Asymbiotic mass production of the arbuscular mycorrhizal fungus Rhizophagus clarus 94%
- Targeted biomass degradation by the higher termite gut system - integrative omics applied to host and its gut microbiome 94%
Similar papers in this journal
- Metabolite Interactions Mediate Beneficial Alliances Between Bacillus and Trichoderma for Effective Fusarium Wilt Control 95%
- Characterization of the first cultured free-living representative of Candidatus Izimaplasma uncovers its unique biology 95%
- Mating type specific transcriptomic response to sex inducing pheromone in the pennate diatom Seminavis robusta 95%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.