1. Anon, 1999. President Clinton announces biomass initiative. Agric and E Intl
51: 132–134.
2. Aloni R, Feigenbaum P, Kalev N and Rozovsky S (2000) Hormonal control of vascular differentiation in plants: the physiological basis of cambium ontogeny and xylem evolution. In: Savidge, R. Barnett J, Napier R (eds) Cell and molecular biology of wood formation. Oxford: Bios Scientific Publishers, pp. 223–236.
3. Alonso-Blanco C and Koornneef M (2000) Naturally occurring variation in Arabidopsis: an underexploited resource for plant genetics. Trends Plant Sci
5: 22–29.
4. Bailey, IW (1952) Biological processes in the formation of wood. Science 115: 255–259.
5. Baima S, Tornassi M, Matteucci A, Altamura MM, Ruberti I and Morelli G (2000) Role of the ATHB-8 gene in xylem formation. In: Savidge, R. Barnett J, Napier R (eds) Cell and molecular biology of wood formation. Oxford, Bios Scientific Publishers, pp. 445–455.