Table 5.

Expression of the plant benzenoid carboxyl methyltransferases

	Floral genes						Defense genes
	C. b. SAMT	A. m. BAMT	S. f. SAMT	P. h. BSMTs	N. s. BSMT	H. c. SAMT	A. b. SAMT	A. m. SAMT	A. t. BSMT	A. l. BSMT
Tissue specific expression (in decreasing order)	Petals, other parts of flower, leaves;	Upper and lower petal lobes	Petals	Limbs, tubes	Petals, stamens, styles and stigmas;	Petals, gynecium	Hairy roots	Petal lobes, sepals, leaves, tubes;	Flowers, leaves, stems	Flowers, leaves
Method used Regulation of expression	Northern blot Developmental	Northern blot Developmental, rhythmic (max. 6 pm), circadian	Northern blot Developmental, rhythmic (max. 6 pm–midnight), circadian	Northern blot Developmental, rhythmic (nocturnal)	Northern blot Developmental, rhythmic (max. 6 pm), circadian	Northern blot Developmental, rhythmic (max. 6pm)	Northern blot nd	RT-PCR nd	RT-PCR nd	RT-PCR nd
Induction by	nd	nd	nd	nd	nd	nd	SA^*, in hairy roots	SA^, JA^, only in flowers	alamethicin, MeJA^*, herbivory, uprooting, physical wounding, in flowers and leaves	nd
Activity (pkats/g FW)
SA^*	28.1	0	235	259.6	0.56	9.8	nd	nd	nd	nd
BA^*	nd	36	29.4	58.3	2.2	0	nd	nd	nd	nd
Suggested function in planta	MeSA^* production in flowers	MeBA^* production in flowers	MeBA^* and MeSA^* production in flowers	MeBA^* production in flowers	MeBA^* and MeSA^* production in flowers	MeSA^* production in flowers	Detoxification of SA^* into MeSA^* in hairy roots	Defense through production of MeSA^* in flowers	Defense through production of MeSA^, occasionally MeBA^ in plant	nd
References	Dudareva et al. (1998), Ross (2002)	Dudareva et al. (2000), Kolosova et al. (2001a,b)	Pott et al. (2003, 2004)	Negre et al. (2003); Dudareva and Kish, unpublished	Pott et al. (2004); Fig. 3	Pott (2003); Piechulla, Heidebrecht and Piechulla, unpublished	Fukami et al. (2002)	Negre et al. (2002)	Chen et al. (2003)	Chen et al. (2003)

SA: salicylic acid; BA: benzoic acid; MeSA: methyl salicylate; MeBA: methyl benzoate; JA: jasmonic acid; MeJA: methyl jasmonate.