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Polyamines: A new class of growth substances

1992; Springer Nature (Netherlands); Linguagem: Inglês

10.1007/978-94-011-2458-4_29

0924-1949

Nello Bagni, Patrizia Torrigiani,

Plant tissue culture and regeneration

This review on polyamines attempts to present evidence in favour of their role as plant growth substances. Many results suggest that polyamines are implicated in a number of growth and developmental processes in plants, ranging from cell division, embryogenesis, senescence and flowering. However, due to their cationic nature and low molecular weight, polyamines also display effects similar to those of inorganic cations that will be only marginally considered in this short review Finally, their changes in response to stress phenomena and their utilization for alkaloid synthesis are not dealt with and the reader should refer to recent reviews covering these aspects in considerable detail (Bachrach and Heimer, 1989; Flores et al., 1990).