The dynamics of sexual phase in the marine diatom Pseudo‐nitzschia multistriata (Bacillariophyceae)

@article{Scalco2014TheDO,
  title={The dynamics of sexual phase in the marine diatom Pseudo‐nitzschia multistriata (Bacillariophyceae)},
  author={Eleonora Scalco and Krzysztof Franciszek Stec and D. Iudicone and Maria Immacolata Ferrante and Marina Montresor},
  journal={Journal of Phycology},
  year={2014},
  volume={50}
}
Sexual reproduction represents a fundamental phase in the life cycle of diatoms, linked to both the production of genotypic diversity and the formation of large‐sized initial cells. Only cells below a certain size threshold can be sexualized, but various environmental factors can modulate the success of sexual reproduction. We investigated the role of cell density and physiological conditions of parental strains in affecting the success and timing of sexual reproduction in the marine… 
View on Wiley
ncbi.nlm.nih.gov
28 Citations
Background Citations
11
Methods Citations
1
Results Citations
1

28 Citations

The sexual phase of the diatom Pseudo-nitzschia multistriata: cytological and time-lapse cinematography characterization

Pseudo-nitzschia is a thoroughly studied pennate diatom genus for ecological and biological reasons. Many species in this genus, including Pseudo-nitzschia multistriata, can produce domoic acid, a…

Exploring Molecular Signs of Sex in the Marine Diatom Skeletonema marinoi

The results further broadened the panel of genes that can be used as a marker for sexual reproduction of diatoms, crucial for the interpretation of metatranscriptomic datasets.

A Metabolomics Exploration of the Sexual Phase in the Marine Diatom Pseudo-nitzschia multistriata

It is hypothesized that the amount and nature of cellular metabolites varies along the mating process, and the role of highly regulated compounds such as 7-dehydrodesmosterol, whose changes in abundance were the highest in the experiment, oleamide, ectoine, or trigonelline is discussed.

Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications

Diatoms are fast-growing and winning competitors in aquatic environments, possibly due to optimized growth performance. However, their life cycles are complex, heteromorphic, and not fully…

Mate Perception and Gene Networks Regulating the Early Phase of Sex in Pseudo-nitzschia multistriata

The nature of the molecules controlling sexual reproduction in the marine diatom Pseudo-nitzschia multistriata is explored, unveiling that the signaling is mediated by the secretion of protein and non-protein cues from the MT− and MT+, respectively.

Finding a partner in the ocean: molecular and evolutionary bases of the response to sexual cues in a planktonic diatom

The controllable life cycle and genome sequence of P. multistriata allow the reconstruction of changes occurring in diatoms in a key phase of their life cycle, providing hints on the evolution and putative function of their genes and empowering studies on sexual reproduction.

Directed motility of benthic diatoms

Despite being unicellular, diatoms can clearly prioritize between nutrient foraging and mating, and it is highly possible that there is a cross-talk between dSi- and mate-sensing where motility is being regulated by the cells.

The Role of Life Cycle Characteristics in Harmful Algal Bloom Dynamics

These life cycles are clearly adaptable to a broad range of environments as shown by their widespread distribution and abundance and are likely to provide further insights into algal species ecology broadly, including responses to global climate change, ocean acidification, and coastal nutrient enrichment.

Reproductive Compatibility and Toxicogenic Activity of the Diatom Pseudo-nitzschia calliantha Lundholm, Moestrup & Hasle from Three Geographically Remote Populations

Abstract Using the methods of reproductive biology, successful inter- and intra-population sexual reproduction of Pseudo-nitzschia strains derived from three geographically remote areas was obtained.…

Pheromone Mediated Sexual Reproduction of Pennate Diatom Cylindrotheca closterium

Pheromone guided mating in the coastal raphid diatom Cylindrotheca closterium is described and it is shown that the two mating types (mt+ and mt−) have distinct functions.

References

SHOWING 1-10 OF 55 REFERENCES

Sexual and vegetative phases in the planktonic diatom Pseudo-nitzschia multistriata.

Light is a key factor in triggering sexual reproduction in the pennate diatom Haslea ostrearia.

Light was found to be a key factor for sexualization, and to a certain extent, to control auxosporulation in H. ostrearia.

Experimental studies on sexual reproduction in diatoms.

MASS SEXUAL REPRODUCTION IN THE TOXIGENIC DIATOMS PSEUDO‐NITZSCHIA AUSTRALIS AND P. PUNGENS (BACILLARIOPHYCEAE) ON THE WASHINGTON COAST, USA 1

Sexual reproduction is documented for the first time in field populations of the pennate diatoms Pseudo‐nitzschia australis Freng. and P. pungens (Grunow ex Cleve) Hasle (var. cingulata Villac and…

Heterothallic sexual reproduction in the model diatom Cylindrotheca

Cylindrotheca closterium strains from a single rbcL lineage were used to describe the life cycle of this marine diatom, including the sexual process and mating system, and large percentages of cells at defined sexual stages can easily be obtained.

HETEROTHALLIC SEXUALITY AND DENSITY DEPENDENT ENCYSTMENT IN THE CHRYSOPHYCEAN ALGA SYNURA PETERSENII KORSH. 1

It is concluded that chrysophycean flagellates may have a perennation strategy quite different from that of the majority of planktonic diatoms, dinoflageLLates, and green algae for which resting cyst production requires an exogenous trigger usually associated with physiological stress and periods of negative growth.

Genetic and microscopic evidence for sexual reproduction in the centric diatom Skeletonema marinoi.

TRANSITION TO SEXUAL REPRODUCTION AND CONTROL OF INITIAL CELL SIZE INNITZSCHIA LANCEOLATA

The transition to sexual reproduction was studied in the dioeciously reproducing species Nitzschia lanceolata, where a compatible partner must be present for vigorous auxosporulation.

SPORE FORMATION IN THE LIFE CYCLES OF THE DIATOMS CHAETOCEROS DIADEMA AND LEPTOCYLINDRUS DANICUS 1

A nitrogen limitation technique elicited the entire life cycle of the marine centric diatoms Chaetoceros diadema (Ehr.) Gran and Leptocylindrus danicus Cleve, and the linkage to the sexual process sharply limits conditions under which resting spores can form.

LIFE CYCLE, SIZE REDUCTION PATTERNS, AND ULTRASTRUCTURE OF THE PENNATE PLANKTONIC DIATOM PSEUDO‐NITZSCHIA DELICATISSIMA (BACILLARIOPHYCEAE) 1

Cell morphology, valve ultrastructure and morphometry of parental, F1‐generation strains, and the progeny of crosses between parental and F1 strains are investigated, and variability in cell shape was recorded in the largest cells of the F1 generation as well as in valves with an abnormal arrangement of poroids.
...