Ochrophyta
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Ochrophytes, also known as heterokontophytes or stramenochromes, are a phylum of algae. They are the photosynthetic stramenopiles, a group of eukaryotes, organisms with a cell nucleus, characterized by the presence of two unequal flagella, one of which has tripartite hairs called mastigonemes. In particular, they are characterized by photosynthetic organelles or plastids enclosed by four membranes, with membrane-bound compartments called thylakoids organized in piles of three, chlorophyll a and c as their photosynthetic pigments, and additional pigments such as β-carotene and xanthophylls. Och
Species
brown algae
PHYLUM
- KingdomChromista
- PhylumOchrophyta
淡色藻门（学名：Ochrophyta）是不等鞭毛类的一大部分光合生物[2][3]。它被分为两个亚门——Phaeista（包括Hypogyristea和Chrysista）和Khakista（包括Bolidomonas（英语：Bolidomonas）和硅藻纲）[4] 。 参考文献 ^ Cavalier-Smith T. Zooflagellate phylogeny and classification. Cytology. 1995, 37: 1010–1029. ^ Thomas Cavalier-Smith & Ema E.-Y. Chao. Phylogeny and megasystematics of phagotrophic heterokonts (kingdom Chromista). Journal of Molecular Evolution. 2006, 62 (4): 388–420. PMID 16557340. doi:10.1007/s00239-004-0353-8. ^ Ingvild Riisberga, Russell J. S. Orr, Ragnhild Kluge, Kamran Shalchian-Tabrizi, Holly A. Bowers, Vishwanath Patil, Bente Edvardsen & Kjetill S. Jakobsen. Seven gene phylogeny of heterokonts. Protist. 2009, 160 (2): 191–204. PMID 19213601. doi:10.1016/j.protis.2008.11.004. ^ Heterokontophyta. SHIGEN. National Institute of Genetics. [June 18, 2009]. 查 论 编 真核生物 域 古菌 细菌 真核生物 (界 植物 Hacrobia（英语：Template:Hacrobia） 不等鞭毛类（英语：Template:Heterokont） 囊泡虫 有孔虫（英语：Template:Rhizaria） 古虫 变形虫（英语：Template:Amoebozoa） 动物 真菌) 双鞭毛生物多貌生物AH原始色素体生物(A)，或广义植物 綠植界（英语：Viridiplantae）/狭义植物 红藻门 灰胞藻门 定鞭/隐藻生物(H)（有争议） 定鞭藻门 隐藻门 中阳虫门 SAR不等鞭毛/囊泡生物不等鞭毛类(S) 淡色藻总门 双环总门 伪真菌总门 囊泡虫类(A) 纤毛虫门 粘孢子总门 頂複門 双鞭毛虫门 有孔虫界(R) 丝足虫类 有孔虫类 有孔虫门 放射虫门 古虫界 盘嵴亚界 眼虫门 雅各巴虫纲（英语：Jakobea） 透色门 槽
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Article
23 sectionsContents
- Etymology
- Characteristics
- Flagella
- Chloroplasts
- Pigmentation
- Storage products
- Diversity
- Reproduction
- Ecology
- Marine
- Freshwater
- Harmful algae
- Evolution
- External
- Internal
- History of knowledge
- Pre-Linnean
- Discovery period (1753–1882)
- First synthesis period (1882–1914)
- Floristic period (1914–1950)
- Notes
- References
- External links
Ochrophytes, also known as heterokontophytes or stramenochromes, are a phylum of algae. They are the photosynthetic stramenopiles, a group of eukaryotes, organisms with a cell nucleus, characterized by the presence of two unequal flagella, one of which has tripartite hairs called mastigonemes. In particular, they are characterized by photosynthetic organelles or plastids enclosed by four membranes, with membrane-bound compartments called thylakoids organized in piles of three, chlorophyll a and c as their photosynthetic pigments, and additional pigments such as β-carotene and xanthophylls. Ochrophytes are one of the most diverse lineages of eukaryotes, containing ecologically important algae such as brown algae and diatoms. They are classified either as phylum Ochrophyta, Heterokontophyta or as subphylum Ochrophytina within phylum Gyrista. Their plastids are of red algal origin.
== Etymology ==