Effects of desiccation on spore releasing of gut weed (Ulva intestinalis Linnaeus) | ผลของการผึ่งแห้งต่อการปล่อยสปอร์ ของสาหร่ายไส้ไก่ (Ulva intestinalis Linnaeus)
2009
Tippawan Kraivilas(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Aquaculture Business Research Center) E-mail:[email protected] | Chatcharee Kaewsuralikhit(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Aquaculture Business Research Center) | Chalor Limsuwan(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Aquaculture Business Research Center) | Niti Chuchird(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Aquaculture Business Research Center)
Effect of desiccation on spore releasing of Gut weed (Ulva intestinalis Linnaeus) was studied in different desiccation periods of 0, 15, 30, 45, and 60 minutes. Spores released from U. intestinalis were counted under microscope every 3 hours for 24 hours after desiccation. Results of the present study showed that the highest number of spores released within 24 hours was 4,879.78+-138.62 cells/g at 30 min desiccation followed by 4,392.89+-127.83, 4,075+-173.44, 2,226.00+-122.32, and 322.00+-73.34 cells/g at 45, 15, 60 and 0 min desiccation, respectively. The spore releasing rate was highest at 9 hours after initial time from 30 min desiccation with 1,006.44+-7.13 cells/g/3hrs. The germling at 1 day was a unicell, 8-10 micro m in diameter. After 3 days, cell division occurred and developed to a young thallus which was 30-50 micro m in length within 2 weeks.
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