1. Study of factors affecting the culture of Brassica napus L. and B. juncea Coss. mesophyll protoplasts

   • H. -M. Kao
   • G. Seguin-Swartz

   OriginalPaper Pages: 79 - 90

2. The role of pH gradients across the plasmalemma of Catharanthus roseus and its involvement in the release of alkaloids

   • H. Bouyssou
   • A. Pareilleux
   • G. Marigo

   OriginalPaper Pages: 91 - 99

3. Induction of embryogenic Triticum aestivum L. calli. I. Quantification of genotype and culture medium effects

   • John G. Carman
   • Nancy E. Jefferson
   • William F. Campbell

   OriginalPaper Pages: 101 - 113

4. Induction of embryogenic Triticum aestivum L. calli. II. Quantification of organic addenda and other culture variable effects

   • John G. Carman
   • Nancy E. Jefferson
   • William F. Campbell

   OriginalPaper Pages: 115 - 128

5. Establishment and multiplication of colchi-autotetraploids of Rauvolfia serpentina L. Benth. ex Kurz. through tissue culture

   • Archana Mathur
   • Ajay Kumar Mathur
   • Bali Ram Tyagi

   Short communication Pages: 129 - 134

6. Vegetative propagation of Begonia venosa Skan in vitro from inflorescence explants

   • R. L. M. Pierik
   • F. A. A. Tetteroo

   Short communication Pages: 135 - 142

7. In vitro regeneration of plantlets in Brassica alboglabra

   • K. W. Wong
   • C. S. Loh

   Short communication Pages: 143 - 148

8. Picloram-induced somatic embryogenesis in pejibaye palm (Bactris gasipaes H.B.K.)

   • Roberto Valverde
   • Oscar Arias
   • Trevor A. Thorpe

   Short communication Pages: 149 - 156

9. Journals searched

   Abstract Section Pages: 157 - 157

10. Abstracts

    Abstract Section Pages: A76 - A95