Effect of B on Cell Wall Regeneration from Protoplasts of B-efficient and B-inefficient Rape (Brassica napus L.) Cultivars
Abnormalities of cell walls belong to the earliest symptoms of boron deficiency. Significant influences on physical cell wall parameters can be observed within 5 minutes after withholding B supply to the roots (Findeklee and Goldbach 1996, Goldbach et al. 2000). B keeps the integrity of cell walls by binding to pectic polysaccharides via diol linkages of RGII subunits, which form a three-dimensional web-like matrix orienting and fixing microfibers and other constituents of cell walls (Matoh, 1997). He et al. (1996) consider this role of B in cell wall structure as possibly its only physiological function in higher plants.
KeywordsBrassica Napus Cell Wall Material Mesophyll Protoplast Form Cell Wall Pectic Polysaccharide
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- Findeklee, P. and Goldbach, H.E., 1996, Rapid effects of boron deficiency on cell wall elasticity modulus in Cucurbita pepo roots. Bot. Acta 109: 463–465.Google Scholar
- Rajarathnam, J. A., and Lowry, J.B., 1974, The role of boron in the oil-palm (Elaeis guinensis). Ann. Bot. 38: 193–20.Google Scholar
- Tian, Z.H., 1998, Mitochondrial DNA heterogenity and protoplast fusion with cytoplasmic male sterile lines of Brassica napus L.. PhD thesis. Wuhan, Huazhong Agricultural University.Google Scholar
- Wan, Y.H., and Lan, L.F., 1995, Study on the differences in sensitivity to B deficiency in rape (Brassica napus L.) cultivars. Journal of Huazhong Agricultural University, 14: (suppl.): 71–84.Google Scholar
- Yang, Y.H., 2000, Study on cell-wall properties of rape (Brassica napus L.) cultivars and their relations with B-efficiency, PhD thesis, Huazhong Agricultural University, Wuhan, China.Google Scholar
- Yang, Y.H., Wu, L.S., Wang, Y.H., Cao X.Y., 1999, Effects of B on activities of cell wall enzymes in different rape (Brassica napus L.) cultivars. Plant Nutrition and Fertilizer Science, 4: 341–346.Google Scholar