. 2012 Oct 1;2012:pls024. doi: 10.1093/aobpla/pls024

Table 2.

Effect of heat stress on starch concentration in pollen grains at different stages of flower development from wild-type and Nr mutant tomato plants. Pollen grains were collected from wild-type (Pearson) and ethylene receptor mutant (Nr) tomato plants exposed for at least 14 days to either control (28/22 °C day/night) or mild chronic heat stress (MCHS; 32/26 °C day/night) conditions. Starch concentrations (mg g DW⁻¹) are presented as mean values of three experimental replicates (n = 3 independent experiments; pooled from at least 50 flowers each). A–n = flower buds n days before anthesis (A = flower opening).

	Pearson				Nr
	A-5	A-3	A-1	A	A-5	A-3	A-1	A
Control	438.6^ab	327.7^ab	214.0^ab	67.1^b	480.0^a	360.5^ab	264.8^ab	96.5^b
MCHS	208.2^abc	324.3^ab	234.3^abc	75.2^c	174.1^bc	227.8^abc	369.0^a	101.7^c

Values in a row followed by different letters are significantly different (α = 0.05) by multiple comparison Tukey's HSD test.