کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8086081 | 1521802 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The impact of day length on cell division and efficiency of light use in a starchless mutant of Tetradesmus obliquus
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کلمات کلیدی
Scenedesmus obliquusOD750triacylglycerol - تری آسیل گلیسرول TAG یا triacylglycerols - تری گلیسرید یا تری آسیل گلیسرولCell division - تقسیم سلولی، تقسیم یاختهایlight/dark - تیره روشن یا کمرنگ و پررنگMicroalgae - ریز جلبک هاDilution rate - میزان انحلالdry weight - وزن خشکDay/night cycle - چرخه روز / شبPhotosynthetic efficiency - کارایی فتوسنتزی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
Large scale microalgal production will be primarily done under natural sunlight conditions, where microalgae will be exposed to diurnal cycles of light and dark (LD) and to differences in the length of both periods (photoperiod). Tetradesmus obliquus (formerly known as Scenedesmus obliquus), a strain with potential for biofuel production, and the starchless mutant slm1 were grown under 3 different LD periods: 16:8â¯h, 14:10â¯h and 12:12â¯h. Cell division started a fix number of hours after the light went on (sunrise), independently of the length of the photoperiod. For the wild-type, cell division started approximately 14â¯h after the beginning of the day and occurred mainly at night. For the starchless mutant slm1, timing of cell division was also independent of the photoperiod length (starting 10-12â¯h after sunrise). However, as opposed to the wild-type, cell division always started during the day. For both strains, growth rate increased with increased length of the light period. The slm1 mutant is capable of surviving long dark periods (up to 12â¯h) despite the lack of starch. In general, the slm1 mutant has a lower photosynthetic efficiency than the wild-type, with the 12:12â¯h LD resulting into even less efficiency than the other two LD cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Algal Research - Volume 31, April 2018, Pages 387-394
Journal: Algal Research - Volume 31, April 2018, Pages 387-394
نویسندگان
G. Mitsue León-Saiki, TÃ nia Cabrero MartÃ, Douwe van der Veen, René H. Wijffels, Dirk E. Martens,