Figure 5
From: Callose (β-1,3 glucan) is essential for Arabidopsispollen wall patterning, but not tube growth
cals5-3 pollen tube function. Pollen tubes from self-pollinated wild-type (a) and cals5-3 (b) pistils, stained with 0.1% Congo red and viewed with a confocal microscope. Bar, 50 mm; arrowheads, pollen tubes entering the micropyle; ov, ovule. Offspring ratios determined by PCR from reciprocal crosses of wild-type and heterozygous cals5-3 plants (c); P, probability determined by χ2.