Modulation of defense genes and phenolic compounds in wild blueberry in response to Botrytis cinerea under field conditions

Table 2 Concentration of individual flavanol compounds (mg/g FW) in B. cinerea inoculated and healthy wild blueberry flower tissues

	Va brown stem		Va green stem		Va f. Nigrum		Vm short stem		Vm medium stem		Vm tall stem
	48 hpi	96 hpi	48 hpi	96 hpi	48 hpi	96 hpi	48 hpi	96 hpi	48 hpi	96 hpi	48 hpi	96 hpi
Catechin
Control	33.2 ± 4.3ab	21.1 ± 5.0 c-f	18.5 ± 2.0 def	19.7 ± 3.0 def	21.8 ± 7.6 c-f	28.6 ± 10.7 a-d	30.7 ± 6.4 abc	32.1 ± 13.2 ab	27.6 ± 2.7 a-e	28.5 ± 5.7 a-d	23.0 ± 3.4 b-f	21.7 ± 3.1 b-f
*Botrytis cinerea*	30.8 ± 5.3 abc	35.2 ± 2.7 a	20.3 ± 2.2 def	15.9 ± 2.5 f	20.0 ± 7.1 def	14.5 ± 12.8 f	35.5 ± 8.5 a	24.1 ± 0.9 b-f	17.8 ± 4.4 ef	24.0 ± 3.2 b-f	21.5 ± 5.9 c-f	18.7 ± 3.5 def
Procyanidin B2
Control	33.8 ± 6.3 a-d	23.7 ± 4.3 def	25.8 ± 1.7 b-f	24.2 ± 3.3 c-f	30.3 ± 8.9bcd	26.0 ± 5.1 b-e	33.6 ± 6.1 a-d	35.8 ± 8.9 ab	32.1 ± 8.8 a-d	25.0 ± 1.4 c-f	34.5 ± 5.7 abc	26.0 ± 5.1 bcd
*Botrytis cinerea*	30.0 ± 5.3 bcd	34.1 ± 7.1a-d	27.5 ± 2.2 bcd	15.3 ± 2.0 f	26.1 ± 3.8 b-e	15.6 ± 4.0 ef	41.2 ± 13.3 a	28.9 ± 4.7 bcd	27.4 ± 8.9 bcd	24.9 ± 9.2 c-f	32.2 ± 7.5 a-d	27.5 ± 4.9 bcd

Mean value (n = 3) ± standard deviation. Mean separation was completed using least significant difference (LSD) test procedure. For each compound (across columns and rows), mean with the same letters are not significantly different from each other at α = 0.05. Catechin: P = 0.0009, and Procyanidin B2: P = 0.0041

ISSN: 1471-2229