Papers - NIWA KYOSUKE

Experimental cultivation of Neopyropia kitoi (Bangiales, Rhodophyta) for the establishment of a new marine crop in nori cultivation: A field experiment assessment of growth, pigments and free amino acids

Kyosuke Niwa, Hiroshi Iga, Yushi Shimada, Hirofumi Furuita, Takeshi Yamamoto , 2024.07

Aquaculture

DOI

Species identification of wild Pyropia processed as the local specialty “menori” in Kashiwajima, Kochi Prefecture

松下桜子, 荻田淑彦, 二羽恭介 , 2024.07

Jpn. J. Phycol.

Exploration and growth characteristics of allopolyploids derived from interspecific hybridization between Neopyropia yezoensis and Neopyropia tenera (Bangiales, Rhodophyta) in natural populations of eastern Japan

Fumina Komada, Norio Kikuchi, Kyosuke Niwa , 2024.02

Aquaculture

DOI

Comparison of growth and morphology of Undaria pinnatifida sporophytes produced by crossbreeding using different gametophytic strains#I#IR

Keitaro Kajiwara, Kyosuke Niwa , 2024.03

藻類

Confirmation of Neoporphyra cf. dentata on Shikinejima, Izu Islands, southcentral Japan, and comparison with co‐occurring Neoporphyra haitanensis

Miku Okamoto, Airi Ikeura, Motoya Tamaki, Kyosuke Niwa , 2023.04

Phycological Research

DOI

Simple molecular identification and free amino acid contents of Neoporphyra kitoi (Bangiales, Rhodophyta) with potential use as a new species for nori cultivation

Kyosuke Niwa, Hiroshi Iga, Yushi Shimada, Hirofumi Furuita, Takeshi Yamamoto , 2023.01

Journal of Applied Phycology

DOI

Potential of Neoporphyra kitoi (Bangiales, Rhodophyta) as a candidate species for marine crops with high temperature tolerance

Kyosuke Niwa, Hiroshi Iga, Takao Sato , 2022.02

AQUACULTURE

DOI

OACIS Paper URL

Stable allopolyploidy in a hybrid zone within the Matsukawaura Lagoon (Japan) between Neopyropia yezoensis and Neopyropia tenera (Bangiales, Rhodophyta) and its relevance to speciation mechanisms and crop improvement

Kyosuke Niwa, Yukiho Koizumi, Hiroshi Iga , 2021.09

MARINE ECOLOGY

DOI

First record of Neoporphyra haitanensis (T.J.Chang & B.F.Zheng) J.Brodie & L.‐E.Yang (Bangiales, Rhodophyta) from Shikinejima Island and Hachijojima Island of the Izu Islands, southern central Japan

Fumina Sano, Airi Ikeura, Arata Takasugi, Kyosuke Niwa , 2021.08

Phycological Research

DOI

Molecular evidence of allodiploidy in F1 gametophytic blades from a cross between Neopyropia yezoensis and a cryptic species of the Neopyropia yezoensis complex (Bangiales, Rhodophyta) by the use of microsatellite markers

Kyosuke Niwa, Fumina Sano, Takashi Sakamoto , 2020.11

Aquaculture Reports

DOI

OACIS Paper URL

Identification, growth, and pigment content of a spontaneous green mutant of Pyropia kinositae (Bangiales, Rhodophyta)

Fumina Sano, Koki Murata, Kyosuke Niwa , 2020.06

Journal of Applied Phycology

DOI

New combinations in Neopyropia J.Brodie & L.-E.Yang (Bangiaceae, Rhodophyta) from Japan

Norio Kikuchi, Kyosuke Niwa , 2020.05

Notulae algarum

Development of a new cultivar with high yield and high-temperature tolerance by crossbreeding of Undaria pinnatifida (Laminariales, Phaeophyta)

Niwa K and Kobiyama A , 2019.05

Aquaculture

Comparative analysis of strategies to prepare electron sinks in aquatic photoautotrophs

Shimakawa G, Murakami A, Niwa K, Matsuda Y, Wada A and Miyake C , 2019.03

Photosynthesis Research

Possibility of polyploidy breeding using cryptic species in the marine crop Pyropia yezoensis (Bangiales, Rhodophyta)

Niwa K, Abe T and Kobiyama A , 2018.09

Journal of Applied Phycology

Morphological and genetic differentiation of cultivated Undaria pinnatifida (Laminariales, Phaeophyta)

Niwa K, Kobiyama A, Fuseya R and Sakamoto T , 2017.09

Journal of Applied Phycology

Variety in excitation energy transfer processes from phycobilisomes to photosystems I and II

Ueno Y, Aikawa S, Niwa K, Abe T, Murakami A, Kondo A and Akimoto S , 2017.09

Photosynthesis Research

大型水槽によるフリー配偶体を使ったワカメの種苗生産

二羽恭介 , 2016.09

水産増殖

Phenotypic differentiation in the morphology and nutrient uptake kinetics among Undaria pinnatifida cultivated at six sites in Japan

Sato Y, Hirano T, Niwa K, Suzuki T, Fukunishi N, Abe T and Kawano S , 2016.09

Journal of Applied Phycology

室内培養のフリー配偶体を用いた瀬戸内海におけるワカメの促成栽培試験

二羽恭介・原田和弘 , 2016.09

藻類

Proposal of a new combination and a valid name for the two Bangiales taxa (Rhodophyta) used for nori cultivation in Japan

Kikuchi N, Nakada T and Niwa K , 2015.09

Journal of Japanese Botany

兵庫県明石海峡周辺のノリ漁場における二毛作に向けたワカメ養殖試験

二羽恭介 , 2015.09

藻類

窒素欠乏と添加による養殖ノリ葉状体の生理的応答

二羽恭介・原田和弘 , 2015.09

水産海洋研究

養殖ノリ葉状体の窒素欠乏と添加に対する生理的応答

二羽恭介・原田和弘 , 2015.09

海洋と生物

Speciation in the marine crop Pyropia yezoensis (Bangiales, Rhodophyta)

Niwa K and Kobiyama A , 2014.09

Journal of Phycology

養殖ノリの培養・交雑と分子マーカー解析による遺伝育種学的研究

二羽恭介 , 2014.09

日本水産学会誌

Cryptic species in the Pyropia yezoensis complex (Bangiales, Rhodophyta): sympatric occurrence of two cryptic species even on same rocks

Niwa K, Kikuchi N, Hwang M.-S, Choi H.-G and Aruga Y , 2014.09

Phycological Research

スサビノリの基礎生物学，色素変異体とその作出方法

二羽恭介 , 2014.09

日本水産学会誌

スサビノリの持続的生産への挑戦

三上浩司・小林正裕・川村嘉応・二羽恭介 , 2014.09

日本水産学会誌

Physiological responses to nitrogen deficiency and resupply in different blade portions of Pyropia yezoensis f. narawaensis (Bangiales, Rhodophyta)

Niwa K and Harada K , 2013.09

Journal of Experimental Marine Biology and Ecology

海藻におけるハイブリッドとクローン

二羽恭介 , 2013.09

日本水産学会誌

Chimeras with mosaic pattern in archeospore germlings of Pyropia yezoensis Ueda (Bangiales, Rhodophyta)

Niwa K and Abe T , 2012.09

Journal of Phycology

Induction and isolation of pigmentation mutants of Porphyra yezoensis (Bangiales, Rhodophyta) by heavy-ion beam irradiation

Niwa K, Hayashi Y, Abe T and Aruga Y , 2012.09

RIKEN Accelerator Progress Report

Mutation breeding in the marine crop Porphyra yezoensis (Bangiales, Rhodophyta): cultivation experiment of the artificial red mutant isolated by heavy-ion beam mutagenesis

Niwa K, Yamamoto T, Furuita H and Abe T , 2011.09

Aquaculture

Allopolyploidy in natural and cultivated populations of Porphyra (Bangiales, Rhodophyta)

Niwa K and Sakamoto T , 2010.09

Journal of Phycology

Genetic analysis of artificial green and red mutants of Porphyra yezoensis Ueda (Bangiales, Rhodophyta)

Niwa K , 2010.09

Aquaculture

Interspecific hybridization in the haploid blade-forming marine crop Porphyra (Bangiales, Rhodophyta): occurrence of allodiploidy in surviving F1 gametophytic blades.

Niwa K, Kobiyama A and Sakamoto T , 2010.09

Journal of Phycology

Genetic diversity and introgression in two cultivated species (Porphyra yezoensis and Porphyra tenera) and closely related wild species of Porphyra (Bangiales, Rhodophyta)

Niwa K, Iida S, Kato A, Kawai H, Kikuchi N, Kobiyama A and Aruga Y , 2009.09

Journal of Phycology

Simple molecular discrimination of cultivated Porphyra species and related wild species (Bangiales, Rhodophyta)

Niwa K and Kobiyama A , 2009.09

Phycological Research

Induction and isolation of pigmentation mutants of Porphyra yezoensis (Bangiales, Rhodophyta) by heavy-ion beam irradiation

Niwa K, Hayashi Y, Abe T and Aruga Y , 2009.09

Phycological Research

養殖ノリの品種改良における純系化の意義と活用

二羽恭介 , 2009.09

海藻資源

瀬戸内海におけるノリ色落ちの現状と対策

二羽恭介 , 2009.09

水産海洋研究

養殖ノリの分類と品種改良

二羽恭介 , 2008.09

水産育種

Identification and characterization of a green-type mutant of Porphyra tenera Kjellman var. tamatsuensis Miura (Bangiales, Rhodophyta)

Niwa K, Furuita H, Yamamoto T and Kobiyama A , 2008.09

Aquaculture

Changes of growth characteristics and free amino acid contents of cultivated Porphyra yezoensis Ueda (Bangiales, Rhodophyta) blades with the progression of the number of harvests in a nori farm

Niwa K, Furuita H and Yamamoto T , 2008.09

Journal of Applied Phycology

Comparative studies on wild and cultivated Porphyra yezoensis (Bangiales, Rhodophyta) based on molecular and morphological data

Niwa K, Kato A, Kobiyama A, Kawai H and Aruga Y , 2008.09

Journal of Applied Phycology

Identification of currently cultivated Porphyra species by PCR-RFLP analysis

Niwa K and Aruga Y , 2006.09

Fisheries Science

東京湾多摩川河口干潟における絶滅危惧種アサクサノリ(紅藻)の生育状況とその形態

菊地則雄, 二羽恭介 , 2006.09

藻類

Morphological and molecular analysis of the endangered species Porphyra tenera (Bangiales, Rhodophyta)

Niwa K, Kikuchi N and Aruga Y , 2005.09

Journal of Phycology

Confirmation of cultivated Porphyra tenera (Bangiales, Rhodophyta) by polymerase chain reaction restriction fragment length polymorphism analyses of the plastid and nuclear DNA

Niwa K, Kobiyama A and Aruga Y , 2005.09

Phycological Research

Morphological and AFLP variation of Porphyra yezoensis Ueda form. narawaensis Miura (Bangiales, Rhodophyta)

Niwa K, Kikuchi N, Iwabuchi M and Aruga Y , 2004.09

Phycological Research

Free amino acid contents of the gametophytic blades from the green mutant conchocelis and the heterozygous conchocelis in Porphyra yezoensis Ueda

Niwa K, Furuita H and Aruga Y , 2003.09

Journal of Applied Phycology

Rapid DNA extraction from conchocelis and ITS-1 rDNA sequences of seven strains of cultivated Porphyra yezoensis (Bangiales, Rhodophyta)

Niwa K and Aruga Y , 2003.09

Journal of Applied Phycology

ノリ養殖と沿岸環境 – 瀬戸内海 –

眞鍋武彦・二羽恭介・岡本繁好・西川哲也・堀豊・上田隆敏 , 2003.09

日本水産学会誌

Genetic characterization of a spontaneous green-type pigmentation mutant of Porphyra yezoensis and the significance of using heterozygous conchocelis in nori farming

Niwa K, Mizuta A and Aruga Y , 2002.09

Fisheries Science

異型接合型糸状体を利用した養殖ノリの新しい品種改良

二羽恭介 , 2002.09

農林水産技術研究ジャーナル

Characterization and genetic analysis of the violet type pigmentation mutant of Porphyra yezoensis Ueda (Bangiales, Rhodophyta)

Niwa K, Miura A, Shin J-A and Aruga Y , 1993.09

Korean Journal of Phycology