Table 1.

Primary monoclonal antibodies (MAbs) used to immunogold label carbohydrates and arabinogalactan proteins in placental cell walls of Physcomitrium patens.

Antibody	Antigen (s)/ Epitope	Reference/ Source
JIM7	Homogalacturonan/ Methyl-esterified	21
JIM5	Homogalacturonan/ Un-esterified	22
LM19	Homogalacturonan/ Un-esterified	23
LM20	Homogalacturonan/ Methyl-esterified	23
LM5	Galactan, rhamnogalacturonan-I/(1–4)-β-d-galactan	24
LM13	Arabinan, rhamnogalacturonan-I/(1–5)-α-L-arabinan (linear)	25
LM15	XXXG motif of xyloglucan	26
LM25	Galactoxylated xyloglucans	27
LM21	Mannan/ β-(1,4)-manno-oligosaccharide	28
LM28	Glucuronoxylan	29
JIM13	Arabinogalactan protein (AGP)/β-d-GlcA-(1,3)-α-d-GalpA-(1,2)-l-Rha(glucuronicacid-galacturonicacid-rhamnose)	30
LM6	Arabinan, rhamnogalacturonan-I/(1–5)-α-L-arabinan(also labels AGP)	31
JIM8	Arabinogalactan protein (AGP)/ unknown	32
LM2	Arabinogalactan protein (AGP)/ β-d-GlcA (glucuronic acid)	33
Anticallose	Callose/ (1,3)-β-linked penta-to-hexa-glucan	34
JIM12	Extensin	35