Histopathology of Seed-Borne Infections - Applied Research Center ...

Structure of Seeds 67epsent endCADBEscendcschembcotepsGmlendscFJeps ent endscendembHIKFIGURE 3.10 Structure of seed in Solanaceae. A to E, Lycopersicon esculentum. A, B, Lsand Ts of seed. C, Ls seed coat with endosperm. D, Single epidermal cell from maceration;note elongated thick radial walls with pointed tips. E, Endothelial cells in surface view showingpigmented contents and thick cell walls. F to H, Capsicum annuum. F, G, Ls and Ts seed.H, Ls part of seed coat with strong rodlike thickenings on radial walls and persistent thinwalledmiddle layers. I to K, Nicotiana tabacum. I, J, Ls and Ts seed. K, Ls part of seedcoat, epidermal cells tangentially elongated and full of pigmented contents. (Abbreviations:ch, comma head and cs, comma stem of endosperm; cot, cotyledon; emb, embryo; end,endosperm; ent, endothelium; eps, seed epidermis; ml, middle layers; sc, seed coat.) (A toH, From Saxena, T. 1970. Ph.D. thesis, University of Rajasthan, Jaipur, India; I to K, FromSharma, R.C. 1976. Ph.D. thesis, University of Rajasthan, Jaipur, India.)