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KMID : 0368419990420030222
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Journal of Plant Biology
1999 Volume.42 No. 3 p.222 ~ p.225
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Structural Changes in Root and Shoot of Bacopa monniera in Response to Salt Stress
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Ali, Gayoor
Ibrahim, A. Arif/Srivastava, Prem Shankar/Iqbal, Muhammad
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Abstract
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Various concentrations of salt (NaCl) were shown to have an influence on the differentiation of tissues in the root and stem of Bacopa monniera (L) Wettst. Higher concentrations induced drastic changes in roots grown on salt-supplemented media; epidermal and cortical cells experienced changes in shape, size, and orientation and/or were got disintegrated. A low concentration of salt induced a profuse development of root hairs which gradually disappeared at higher concentrations. Air spaces in the stem cortex were enlarged and xylem cell walls in the vascular ring were thickened.
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