Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Red Algae01:23

Red Algae

1.8K
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
1.8K
Diversity of Protists III01:27

Diversity of Protists III

1.9K
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
1.9K
Diversity of Protists II01:27

Diversity of Protists II

2.0K
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
2.0K
Diversity of Protists IV01:27

Diversity of Protists IV

2.0K
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
2.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Improved subseasonal prediction of South Asian monsoon rainfall using data-driven forecasts of oscillatory modes.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Short term response of plankton community to nutrient enrichment in central eastern Arabian Sea: Elucidation through mesocosm experiments.

Journal of environmental management·2021
Same author

Homology modeling, virtual screening and dynamics study of proteins involved in Pebrine - Serine protease inhibitor 106 and spore wall protein 26.

Journal of biomolecular structure & dynamics·2019
Same author

Predictability of Weather and Climate.

Earth and space science (Hoboken, N.J.)·2019
Same author

Pneumococcal Vaccination in Rheumatic Diseases.

The Journal of the Association of Physicians of India·2015
Same author

Two Unusual but Treatable Causes of Refractory Ascites After Liver Transplantation.

Cardiovascular and interventional radiology·2015

Related Experiment Video

Updated: Mar 22, 2026

Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri Uljanin 1884 for Experimental Studies
09:39

Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri Uljanin 1884 for Experimental Studies

Published on: August 9, 2019

13.3K

THE CONCHOCELIS PHASE OF THREE SPECIES OF PORPHYRA IN CULTURE.

V Krishnamurthy1

  • 1Friday Harbor Laboratories, Friday Harbor, Washington 98250.

Journal of Phycology
|April 21, 2016
PubMed
Summary

Three Porphyra species showed distinct differences in their conchocelis phases, including growth duration and spore release, under identical laboratory conditions, suggesting inherent species-specific traits.

Area of Science:

  • Marine Botany
  • Phycology
  • Algology

Background:

  • The conchocelis phase is a filamentous, calcified stage in the life cycle of Porphyra (red algae).
  • Understanding conchocelis development is crucial for Porphyra aquaculture and life cycle studies.

Purpose of the Study:

  • To investigate and compare the conchocelis phases of three Porphyra species: Porphyra perforata f. patens.
  • To document differences in vegetative growth, sporulation, spore release, and return to the leafy phase among these species.
  • To infer species-specific characteristics based on observed variations under controlled conditions.

Main Methods:

  • Conchocelis spores of Porphyra perforata f. patens, P. cuneiformis, and P. nereocystis were cultured.
  • Cultures were maintained in a sterile artificial medium at 12°C with 10 hours of 25 ft-c illumination daily.

More Related Videos

Streamlined Sampling and Cultivation of the Pelagic Cosmopolitan Larvacean, Oikopleura dioica
11:55

Streamlined Sampling and Cultivation of the Pelagic Cosmopolitan Larvacean, Oikopleura dioica

Published on: June 16, 2020

9.6K
Author Spotlight: Advancing Coral Research by Exploring Climate Change Resistance, Ex Situ Aquaculture, and Reproduction Strategies
09:31

Author Spotlight: Advancing Coral Research by Exploring Climate Change Resistance, Ex Situ Aquaculture, and Reproduction Strategies

Published on: June 23, 2023

2.1K

Related Experiment Videos

Last Updated: Mar 22, 2026

Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri Uljanin 1884 for Experimental Studies
09:39

Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri Uljanin 1884 for Experimental Studies

Published on: August 9, 2019

13.3K
Streamlined Sampling and Cultivation of the Pelagic Cosmopolitan Larvacean, Oikopleura dioica
11:55

Streamlined Sampling and Cultivation of the Pelagic Cosmopolitan Larvacean, Oikopleura dioica

Published on: June 16, 2020

9.6K
Author Spotlight: Advancing Coral Research by Exploring Climate Change Resistance, Ex Situ Aquaculture, and Reproduction Strategies
09:31

Author Spotlight: Advancing Coral Research by Exploring Climate Change Resistance, Ex Situ Aquaculture, and Reproduction Strategies

Published on: June 23, 2023

2.1K

Main Results:

  • Significant differences were observed in the duration of the vegetative phase among the three Porphyra species.
  • Variations were noted in sporulation timing, spore liberation, and the subsequent return to the leafy (conchocelis) phase.
  • Distinct morphological differences were also identified between the species' conchocelis stages.

Conclusions:

  • The observed differences in growth, development, and morphology suggest inherent species-specific characteristics for the conchocelis phase of Porphyra perforata f. patens, P. cuneiformis, and P. nereocystis.
  • These findings highlight the importance of species-specific cultivation parameters for optimizing Porphyra cultivation.
  • Further research is warranted to elucidate the genetic and environmental factors influencing these variations.