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Fig. 3 | BMC Plant Biology

Fig. 3

From: Cytological observation of anther structure and genetic investigation of a thermo-sensitive genic male sterile line 373S in Brassica napus L

Fig. 3

Microscopical structure of anthers of control (a–e) and 373S sterile (f–j) plants at different developmental stages. a and f, pollen mother stage; b and g, tetrad stage; c and h, early uninucleate stage; d, late uninucleate stage; e, mature pollen stage; i, partly aborted microspores; j, completely aborted pollen grains. MMC, microspore mother cell; T, tapetum; E, epidermis; En, endothecium; ML, middle layer; Tds, tetrads; N, nucleus; V, vacuole; M, microspores; PG, pollen grain; Ex, exine

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