Media type: E-Article Title: Factors affecting the isolation and callus formation in protoplasts from the shoot apices of Pisum sativum L Contributor: Gamborg, Oluf L.; Shyluk, J.; Kartha, K.K. Published: Elsevier BV, 1975 Published in: Plant Science Letters, 4 (1975) 5, Seite 285-292 Language: English DOI: 10.1016/0304-4211(75)90100-5 ISSN: 0304-4211 Keywords: Soil Science ; Agronomy and Crop Science Origination: Footnote: