Journal of Phycology

Cover image for Vol. 51 Issue 3

Edited By: Debashish Bhattacharya, Michael Graham, Arthur Grossman, Jonathan Zehr

Impact Factor: 2.844

ISI Journal Citation Reports © Ranking: 2014: 11/102 (Marine & Freshwater Biology); 43/200 (Plant Sciences)

Online ISSN: 1529-8817

Featured

  • Process optimization and modeling for the cultivation of Nannochloropsis sp. and Tetraselmis striata via response surface methodology

    Process optimization and modeling for the cultivation of Nannochloropsis sp. and Tetraselmis striata via response surface methodology

    3D response surface plot (A) and contour line (B) of central composite design showing the mutual effects of light intensity (μmol photons · m−2 · s−1), temperature (°C) and agitation rate (rpm) on chl-a amount (mg · L−1) of Nannochloropsis sp.: (a) light intensity vs. temperature, (b) light intensity vs. agitation rate, and (c) temperature vs. agitation rate.

  • Multi-gene phylogenetic analyses of New Zealand coralline algae: Corallinapetra Novaezelandiae gen. et sp. nov. and recognition of the Hapalidiales ord. nov

    Multi‐gene phylogenetic analyses of New Zealand coralline algae: Corallinapetra Novaezelandiae gen. et sp. nov. and recognition of the Hapalidiales ord. nov

    Corallinapetra novaezelandiae. (a) Holotype of Corallinapetra novaezelandiae (WELT A032914); scale bar = 1 cm. (b) Cross-section showing flared epithallial cells; scale bar = 20 μm. (c) Cross-section showing cell fusions; scale bar = 20 μm.

  • Morphology and molecular phylogeny of Chaetoceros dayaensis sp. nov. (Bacillariophyceae), characterized by two 90° rotations of the resting spore during maturation

    Morphology and molecular phylogeny of Chaetoceros dayaensis sp. nov. (Bacillariophyceae), characterized by two 90° rotations of the resting spore during maturation

    Light (A–G) and SEM micrographs (H) of resting spores of Chaetoceros dayaensis sp. nov. in different maturation stages. (A) Two initial resting spores (lower two). (B) Three immature spores at the end of the first stage of maturation and one rotating immature spore (arrowhead) in the second stage. See also a rimoportula on terminal valve center (arrow). (C) Five rotating immature spores in the second stage of maturation. (D) One chain with three resting spores in three different stages, the upper in the first stage (arrowhead), the lowest in the second stage (broad arrow) and the middle in the third stage (narrow arrow). (E) One chain comprising three nearly mature spores and one rotating immature spore (arrowhead) in the second stage of maturation. (F) Three mature resting spores in broad girdle view. Note a rimoportula on terminal valve center (arrow). (G) Four mature resting spores in narrow girdle view. (H) Two mature spores. Note surface of the resting spores. All figures were photographed from strain MC107-L. Scale bars = 10 μm (A–G), 2 μm (H).

  • Assembling the challenging puzzle of algal biodiversity: species delimitation within the genus Asterochloris (Trebouxiophyceae, Chlorophyta

    Assembling the challenging puzzle of algal biodiversity: species delimitation within the genus Asterochloris (Trebouxiophyceae, Chlorophyta

    Schematic drawings of particular chloroplast and lobe termination types in Asterochloris. (a–g) Chloroplast types (left: surface view; right: view in optical section): (a) deeply lobed, (b) shallowly lobed, (c) crenulate, (d) parietal, (e) flat lobed, (f) echinate, (g) globular. (h–k) Lobe termination types: (h) elongated, (i) simple, (j) flat, (k) finger-like.

  • A phylogenetic re-appraisal of the family Liagoraceae sensu lato (Nemaliales, Rhodophyta) based on sequence analyses of two plastid genes and postfertilization development

    A phylogenetic re‐appraisal of the family Liagoraceae sensu lato (Nemaliales, Rhodophyta) based on sequence analyses of two plastid genes and postfertilization development

    Dermonema virens. Carposporophyte development (A, E: NTOU28032006Dv; B–D, G: NTOU09032008; F: NTOU432006); scale bars: A = 1 cm; B–C, E–G = 25 μm; D = 10 μm. (A) Thallus habit. (B) Prefertilization four-celled carpogonial branch (cb) with carpogonium (cp). (C) Early postfertilization showing carpogonial branch (cb) and presumably fertilized carpogonium (cp) cutting off a gonimoblast initial (gi) that divide obliquely (arrowhead) to produce a young gonimoblast cell. Note cortical cells (white arrows) adjacent to carpogonial branch slightly elongated. (D) Early postfertilization stage showing carpogonial branch (cb), fertilized carpogonium (cp), gonimoblast initial (gi), and young gonimoblast cells (pg) growing acropetally. (E) Later early postfertilization stage showing lateral and outward spread of gonimoblast filaments (arrows) and unmodified carpogonial branch (cb). (F) Young carposporophyte showing unilaterally developing gonimoblast filaments (black arrows) and elongating cortical filaments (white arrows). Note enlarged and darkly stained cells of carpogonial branch (cb). (G) Mature carposporophyte bearing terminal carposporangia (arrows), remaining cell walls (arrowheads) of released carposporangia and flask-shaped, fused carpogonial branch (cb).

  • Relationship between the dinoflagellate cyst Spiniferites pachydermus and Gonyaulax ellegaardiae sp. nov. from Izmir Bay, Turkey, and molecular characterization

    Relationship between the dinoflagellate cyst Spiniferites pachydermus and Gonyaulax ellegaardiae sp. nov. from Izmir Bay, Turkey, and molecular characterization

    Light micrographs of cysts of Gonyaulax ellegaardiae sp. nov., conform to Spiniferites pachydermus. a–i show the single cyst provided for incubation experiment shown in Figure , a–o and holotype of the cyst of G. ellegaardiae sp. nov.; j–l show cysts recovered from surface sediments from Izmir Bay. (a) Midfocus showing cross-section of the cyst. (l) Midfocus showing cross-section in polar view. All scale bars = 10 μm.

  • Process optimization and modeling for the cultivation of Nannochloropsis sp. and Tetraselmis striata via response surface methodology
  • Multi‐gene phylogenetic analyses of New Zealand coralline algae: Corallinapetra Novaezelandiae gen. et sp. nov. and recognition of the Hapalidiales ord. nov
  • Morphology and molecular phylogeny of Chaetoceros dayaensis sp. nov. (Bacillariophyceae), characterized by two 90° rotations of the resting spore during maturation
  • Assembling the challenging puzzle of algal biodiversity: species delimitation within the genus Asterochloris (Trebouxiophyceae, Chlorophyta
  • A phylogenetic re‐appraisal of the family Liagoraceae sensu lato (Nemaliales, Rhodophyta) based on sequence analyses of two plastid genes and postfertilization development
  • Relationship between the dinoflagellate cyst Spiniferites pachydermus and Gonyaulax ellegaardiae sp. nov. from Izmir Bay, Turkey, and molecular characterization

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