The green algae of Order Chaetophorales distributed in Yellow-Bohai Sea of China are studied. More 3 species belonging respectively to 3 different genera are reported for the first time,viz. Entocladia viridis Reinke,...The green algae of Order Chaetophorales distributed in Yellow-Bohai Sea of China are studied. More 3 species belonging respectively to 3 different genera are reported for the first time,viz. Entocladia viridis Reinke, Pringsheimiella scutata (Reinke) Hhnel ex Marchewianka and Ulvella lens P.L. Crouan et H.M. Crouan, with a simple key. Entocladia viridis is different from other species in some features, such as disengaged branches in the external frond with concrescent midsection to distinct cells, irregular, slight swollen and sometime distorted at midsection, and column at external frond with 5～8 μm diameter and 1～5 times high to diameter. This species is found in Qingdao and Yantai, Shandong Province, and inner epiphytic to algae, especially to red algae. Pringsheimiella scutata (Reinke) Hhnel ex Marchewianka is different from other species in the shield frond of one cell layer, 1～2 mm diam., absent rhizoid, with ridgy center cells and flat marginal ones. This species is found in the Yellow Sea, and epiphytic to macroalgae, especially seen at the frond of genus Polysiphonia. Ulvella lens P.L. Crouan et H.M. Crouan is different from other species in the plate-like frond, ridgy midsection, with 1.5 mm diam. And 150～250 μm thick, small cells at midsection with usually 2～3 cells layers and 8～15 μm diameter, big cells at approximate margin of frond with 10～15 μm diameter and 20～30 μm long, cuneate cells at the margin of frond with 1 cell layer, 3.5～4.5 μm diameter and 15～25 μm long. This species is found in Qingdao, Shandong Province, and epiphytic to macroalgae, especially to the frond surface of red algae.展开更多
Studies in animals lacking the cellular prion protein (PrPc) gene (Prnp) showed higher neuronal excitability in vitro and increased sensitivity to seizures in vivo. The authors previously reported a rare polymorphism ...Studies in animals lacking the cellular prion protein (PrPc) gene (Prnp) showed higher neuronal excitability in vitro and increased sensitivity to seizures in vivo. The authors previously reported a rare polymorphism at codon 171 (Asn→ Ser) of human Prnp to be associated with mesial temporal lobe epilepsy related to hippocampal sclerosis. They demonstrated that the same variant allele is also associated with symptomatic epilepsies related to different forms of malformations of cortical development.展开更多
文摘The green algae of Order Chaetophorales distributed in Yellow-Bohai Sea of China are studied. More 3 species belonging respectively to 3 different genera are reported for the first time,viz. Entocladia viridis Reinke, Pringsheimiella scutata (Reinke) Hhnel ex Marchewianka and Ulvella lens P.L. Crouan et H.M. Crouan, with a simple key. Entocladia viridis is different from other species in some features, such as disengaged branches in the external frond with concrescent midsection to distinct cells, irregular, slight swollen and sometime distorted at midsection, and column at external frond with 5～8 μm diameter and 1～5 times high to diameter. This species is found in Qingdao and Yantai, Shandong Province, and inner epiphytic to algae, especially to red algae. Pringsheimiella scutata (Reinke) Hhnel ex Marchewianka is different from other species in the shield frond of one cell layer, 1～2 mm diam., absent rhizoid, with ridgy center cells and flat marginal ones. This species is found in the Yellow Sea, and epiphytic to macroalgae, especially seen at the frond of genus Polysiphonia. Ulvella lens P.L. Crouan et H.M. Crouan is different from other species in the plate-like frond, ridgy midsection, with 1.5 mm diam. And 150～250 μm thick, small cells at midsection with usually 2～3 cells layers and 8～15 μm diameter, big cells at approximate margin of frond with 10～15 μm diameter and 20～30 μm long, cuneate cells at the margin of frond with 1 cell layer, 3.5～4.5 μm diameter and 15～25 μm long. This species is found in Qingdao, Shandong Province, and epiphytic to macroalgae, especially to the frond surface of red algae.
文摘Studies in animals lacking the cellular prion protein (PrPc) gene (Prnp) showed higher neuronal excitability in vitro and increased sensitivity to seizures in vivo. The authors previously reported a rare polymorphism at codon 171 (Asn→ Ser) of human Prnp to be associated with mesial temporal lobe epilepsy related to hippocampal sclerosis. They demonstrated that the same variant allele is also associated with symptomatic epilepsies related to different forms of malformations of cortical development.
