biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 32:58-63, 1990 | DOI: 10.1007/BF02897345

Relations between intracellular pH, water relations and morphogenesis in rose plants in vitro

Huguette Begin-Sallanon1, A. Coudret1, M. Gendraud1
1 Laboratory of Phytomorphogenesis, Clermont-Ferrand, France

Variations in water content, relative water content (RWC), pressure potential and intracellular pH (pH) had been studied as factors of bud growth in rose plantlets grown in vitro for micropropagation. During the phase of healing, pressure potential and pH, were high enough to allow bud growth. During the following growth phase only buds of the lower part of the stem were able to grow. The growth ability of these buds and the growth inhibition of the others, associated with ΔpH, were retained during the last three days of culture, when dry matter content and RWC were the lowest. The results also showed a tight link between pH, and pressure potential. This may enable to distinguish different stages of plantlet development in vitro.

Received: July 6, 1988; Accepted: February 14, 1989; Published: January 1, 1990  Show citation

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Begin-Sallanon, H., Coudret, A., & Gendraud, M. (1990). Relations between intracellular pH, water relations and morphogenesis in rose plants in vitro. Biologia plantarum, 32(1), 58-63. doi: 10.1007/BF02897345
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