Abstract
To better understand molecular mechanism underlying the difference between self-rooting juvenile clones and donor clones, a proteomic approach was used to profile protein changes in the latex between self-rooting juvenile clones and donor clones. Total soluble proteins were extracted from latex in self-rooting juvenile clones and donor clones. Two-dimensional gel electrophoresis (2-DE) was used to identify proteins that were differentially expressed in self-rooting juvenile clones and donor clones and image analysis was used to determine which proteins were up- or down-regulated. Twenty-four differentially expressed protein spots were identified by matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Among the 24 proteins identified, 13 proteins were up-regulated, 11 proteins were decreased in self-rooting juvenile clones. These proteins were classified as carbohydrate and energy metabolism, secondary metabolism, signal translocation, transcriptional regulation-related, protein synthesis and degradation, transport, nucleoside acid process, lipid metabolism. Perhaps, the present study contributes towards an understanding of the molecular mechanism underlying the difference between self-rooting juvenile clones and donor clones.
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Abbreviations
- CBB:
-
Coomassie brilliant blue
- DCs:
-
Donor clones
- GAPDH:
-
Glyceraldehyde 3-phosphate dehydrogenase
- pI:
-
Isoelectric point
- JCs:
-
Juvenile clones
- MALDI-TOF MS:
-
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry
- 1-DE:
-
One-dimensional gel electrophoresis
- PAGE:
-
Polyacrylamide gel electrophoresis
- REF:
-
Rubber elongation factor
- SOD:
-
Superoxide dismutase
- 2-DE:
-
Two-dimensional gel electrophoresis
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (nos. 30960307) and a Chinese National Nonprofit Institute Research Grant of CATAS-ITBB (ITBB110205). We deeply thank Professor Xiong-Ting Chen (Institute of Tropical Biosciences and Biotechnology, CATAS) for his collaboration in treatment of plant materials. We appreciate technical assistance from Dr Xu-chu Wang of Institute of Tropical Biosciences and Biotechnology at CATAS.
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Communicated by S. Abe.
H.-L. Li and D. Guo contributed equally to this work.
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Li, HL., Guo, D., Lan, FY. et al. Protein differential expression in the latex from Hevea brasiliensis between self-rooting juvenile clones and donor clones. Acta Physiol Plant 33, 1853–1859 (2011). https://doi.org/10.1007/s11738-011-0727-7
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DOI: https://doi.org/10.1007/s11738-011-0727-7