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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Diversity of Blue-Green Algae and Green Algae in the Deciduous Dipterocarp Forest at Huai Kha Khang Wildlife Sanctuary) ผู้เขียน: ดร.เดือนรัตน์ ชลอุดมกุล, ผู้ช่วยศาสตราจารย์ , ดร.วิเชียร ยงมานิตชัย, อาจารย์ , นางจันทนา สุขปรีดี, รองศาสตราจารย์ , นางไปรมา ยงมานิตชัย,  Wallapa Arunpairojana, ดร.ประศาสตร์ เกื้อมณี, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractStudy on diversity of blue-green algae and green algae was carried out in Deciduous Dipterocarp Forest at Huai Kha Khang Wildlife Sanctuary. Samples were collected from nine spots in representative plot of 100x100 square meter during rainy, winter and summer. They were divided into two parts and the first part was immediately observed under microscope to study the morphological characteristics while the second portion was enriched with NS III medium and incubated for approximately one month prior to microscopic observation. Based on information obtained 18 genera of blue-green algae and 31 genera of green algae were identified. Distribution of blue-green algal genera was varied in different seasons, i.e. 18 in rainy season, 9 in winter and 14 in summer. Similar pattern was also noticed among green algae, i.e. 27 genera in rainy, 13 genera in winter and 13 genera in summer. Predominant blue-green algae were Oscillatoria and Lyngbya, while green algae were Chlorella and Ulothrix. |
 ที่มา:KASETSART UNIVERSITY FISHERIES RESEARCH BULLETINหัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Salinity and pH on the Growth of Blue-Green Algae, Oscillatoria sp. and Microcystis sp., Isolated from Pacific White Shrimp ( Litopenaeus vannamei) Ponds) ผู้เขียน:สมชาย หวังวิบูลย์กิจ, ดร.ชลอ ลิ้มสุวรรณ, รองศาสตราจารย์ , ดร.นิติ ชูเชิด, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractExperiments were carried out to determine the effects of salinity and pH on the growth of Oscillatoria sp. and Microcystis sp. under laboratory conditions. Oscillatoria sp. and Microcystis sp. were isolated from Pacific white shrimp (Litopenaeus vannamei) low-salinity culture ponds. Mono-clonal culture of each species was kept in 250-ml BG 11 media in the laboratory for 10 days. For Oscillatoria sp. salinities of 0, 5, 10, 15, 20, 25 and 30 ppt were maintained throughout the experimental period, while for Microcystis sp. salinities of 0, 3, 6, 12, 15 and 18 ppt were maintained. The water pH was maintained at 3.0, 4.5, 6.0, 7.5, 9.0, 10.5 and 12.0 for both species. The algal growth was measured by the determination of chlorophyll-a every 2 days. Results under laboratory conditions showed that the optimal salinity levels for growth ranged from 0 to 10 ppt for Oscillatoria sp., and from 0 to 6 ppt for Microcystis sp. An increase of the salinity decreased growth of both species. Water pH levels from 7.5 to 9.0 were suitable for growth of both species, while a pH below or above these range caused significant decrease in growth of these blue-green algae. |
ที่มา:Agricultural science Journalหัวเรื่อง:การแยกเซลล์ไร้ผนังและการพัฒนาเป็นเซลล์ใหม่ของสาหร่ายเกลียวทอง |