Pyropia tenera

Pyropia tenera, also known as gim or nori, is a red algal species in the genus Pyropia. The specific name, tenera, means "delicate" and alludes to its small size. It typically grows to lengths between 20 and 50 cm. It is most typically found in the western Pacific Ocean and the Indian Ocean.

Pyropia tenera
Scientific classification
(unranked): Archaeplastida
Division: Rhodophyta
Class: Bangiophyceae
Order: Bangiales
Family: Bangiaceae
Genus: Pyropia
Species:
P. tenera
Binomial name
Pyropia tenera
(Kjellman, 1897)

Mariculture

In both Wales and Japan, P. tenera (and P. yezoensis) serve as a principal component of dried seaweed food, and has been actively cultivated since ancient times. In Japan, it is most often used in nori, (and in China as zicai, and Korea as gim), and as such is a prime ingredient in sushi. In Wales (and to some degree, England), it is used in the traditional food, laverbread.

Like many of the edible seaweed species, it is susceptible to infection by the parasitic oomycete Pythium porphyrae.[1][2][3][4]

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References
  1. Spencer, M. A. (2004). "Pythium porphyrae. (Descriptions of Fungi and Bacteria)". IMI Descriptions of Fungi and Bacteria. 162 (Sheet 1617). Retrieved 10 October 2017. A description is provided for Pythium porphyrae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASES: Red-rot disease, red-wasting disease. HOSTS: Bangia atropurpurea, Callophyllis adhaerens, Polyopes affinis (syn
  2. Arasaki, Satoshi (1947). "アサクサノリの腐敗病に關する研究" [Studies on the Wasting Disease of the Cultured Lavers (Porphyra tenera)]. Nippon Suisan Gakkaishi (Bulletin of the Japanese Society of Scientific Fisheries) (in Japanese). 13 (3): 74–90. doi:10.2331/suisan.13.74. ISSN 0021-5392.
  3. Diehl, Nora; Kim, Gwang Hoon; Zuccarello, Giuseppe C. (March 2017). "A pathogen of New Zealand Pyropia plicata (Bangiales, Rhodophyta), Pythium porphyrae (Oomycota)" (PDF). Algae. 32 (1): 29–39. doi:10.4490/algae.2017.32.2.25. ISSN 1226-2617. OCLC 7067179428. Retrieved 5 October 2017.
  4. Takahashi, Minoru; Ichitani, Takio; Sasaki, Minoru (1977). "ノリ赤腐病を起因するPythium porphyrae" [Pythium porphyrae sp. nov. causing red rot of marine algae Porphyra spp.]. Transactions of the Mycological Society of Japan. 18 (3): 279–285.

"Porphra tenera". Integrated Taxonomic Information System.

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