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Optimization of protoplast yields from the red algae Gracilaria dura (C. Agardh) J. Agardh and G. verrucosa (Huds.) Papenfuss
Year:
2011
Source of publication :
Journal of Applied Phycology
Authors :
קומארי, פוג'ה
;
.
Volume :
23
Co-Authors:
Gupta, V., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Kumar, M., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Kumari, P., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Reddy, C.R.K., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Jha, B., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Facilitators :
From page:
209
To page:
218
(
Total pages:
10
)
Abstract:
This study reports on the optimization of protoplast yield from two important tropical agarophytes Gracilaria dura and Gracilaria verrucosa using different cell-wall-degrading enzymes obtained from commercial sources. The conditions for achieving the highest protoplast yield was investigated by optimizing key parameters such as enzyme combinations and their concentrations, duration of enzyme treatment, enzyme pH, mannitol concentration, and temperature. The significance of each key parameter was also further validated using the statistical central composite design. The enzyme composition with 4% cellulase Onozuka R-10, 2% macerozyme R-10, 0.5% pectolyase, and 100 U agarase, 0.4 M mannitol in seawater (30‰) adjusted to pH 7.5 produced the highest protoplast yields of 3.7±0.7 × 106 cells g-1 fresh wt for G. dura and 1.2±0.78×106 cells g-1 fresh wt for G. verrucosa when incubated at 25°C for 4-6 h duration. The young growing tips maximally released the protoplasts having a size of 7-15 μm in G. dura and 15-25 μm in G. verrucosa, mostly from epidermal and upper cortical regions. A few large-size protoplasts of 25-35 μm, presumably from cortical region, were also observed in G. verrucosa. © 2010 Springer Science+Business Media B.V.
Note:
Related Files :
Agarophytes
Commercial enzymes
Gracilaria
Gracilaria dura
Gracilaria gracilis
Protoplast production
Rhodophyta
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s10811-010-9579-6
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23652
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:01
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Scientific Publication
Optimization of protoplast yields from the red algae Gracilaria dura (C. Agardh) J. Agardh and G. verrucosa (Huds.) Papenfuss
23
Gupta, V., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Kumar, M., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Kumari, P., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Reddy, C.R.K., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Jha, B., Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), Bhavnagar 364021, India
Optimization of protoplast yields from the red algae Gracilaria dura (C. Agardh) J. Agardh and G. verrucosa (Huds.) Papenfuss
This study reports on the optimization of protoplast yield from two important tropical agarophytes Gracilaria dura and Gracilaria verrucosa using different cell-wall-degrading enzymes obtained from commercial sources. The conditions for achieving the highest protoplast yield was investigated by optimizing key parameters such as enzyme combinations and their concentrations, duration of enzyme treatment, enzyme pH, mannitol concentration, and temperature. The significance of each key parameter was also further validated using the statistical central composite design. The enzyme composition with 4% cellulase Onozuka R-10, 2% macerozyme R-10, 0.5% pectolyase, and 100 U agarase, 0.4 M mannitol in seawater (30‰) adjusted to pH 7.5 produced the highest protoplast yields of 3.7±0.7 × 106 cells g-1 fresh wt for G. dura and 1.2±0.78×106 cells g-1 fresh wt for G. verrucosa when incubated at 25°C for 4-6 h duration. The young growing tips maximally released the protoplasts having a size of 7-15 μm in G. dura and 15-25 μm in G. verrucosa, mostly from epidermal and upper cortical regions. A few large-size protoplasts of 25-35 μm, presumably from cortical region, were also observed in G. verrucosa. © 2010 Springer Science+Business Media B.V.
Scientific Publication
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