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

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Reproductive Structures and Seed Formation 29XepXXependendsuAnuCBFIGURE 2.11 Young embryo of Glycine max. A, Light photomicrograph of embryo differentiatedinto embryo proper and suspensor with wall ingrowths in cells of suspensor (arrows).B, Transmission electron photomicrograph at the junction between the embryo proper, suspensor(arrows), and the endosperm cells. Note that wall ingrowths are associated with thesuspensor and not with the embryo proper. Also the concentration of ingrowths increasestoward the tip of the suspensor. C, Wall ingrowths in tip cell where suspensor abuts the crushednucellar cells. (Abbreviations: end, endosperm; ep, embryo proper; nu, remnants of nucellus;su, suspensor.) (From Dute, R.R., Peterson, C.M., and Rushing, A.E. 1989. Ann. Bot. 64:123–135. With permission.)nucellar cells enlarge and are digested from inside to outside. In most species thenucellus is represented in seed by a few greatly compressed peripheral layers. Thepersistent nucellar remains are covered by a cuticle.The nucellus in Amaranthaceae, Chenopodiaceae, Polygonaceae, Piperaceae,and Scitamineae increases in volume, stores reserve food materials, and persists. Itis called the perisperm and serves as an accessory nutritive tissue, supplementingthe endosperm.
30 Histopathology of Seed-Borne InfectionsembendoiAsuendBCFIGURE 2.12 Transmission electron microscope photomicrographs showing contactsbetween embryo sac and integument, and embryo in Vicia faba. A, Part of the embryo sacadjacent to the outer integument with wall ingrowths in embryo sac boundary. B, Suspensorcells with plastids (arrowheads) and plasmodesmata (arrows) in the wall between the individualcell. C, Plasmodesmata (arrows) in the wall between the endosperm and a suspensorcell. (Abbreviations: emb, embryo; end, endosperm; oi, outer integument, su, suspensor.) (Ato C, From Johansson, M. and Walles, B. 1993. Int. J. Plant Sci. 154: 535–549. Withpermission.)
Page 2 and 3: Histopathology ofSeed-Borne Infecti
Page 4: PrefaceThe book deals with only one
Page 8 and 9: The AuthorsDalbir Singh, Ph.D., for
Page 10 and 11: ContentsChapter 1 Introduction ....
Page 12 and 13: 4.3.2 Routes for Infection from Ova
Page 14: 8.4 Survival in Seed ..............
Page 17 and 18: 2 Histopathology of Seed-Borne Infe
Page 19 and 20: 4 Histopathology of Seed-Borne Infe
Page 22 and 23: 2Reproductive Structuresand Seed Fo
Page 24 and 25: Reproductive Structures and Seed Fo
Page 26: Reproductive Structures and Seed Fo
Page 29 and 30: 14 Histopathology of Seed-Borne Inf
Page 43: 28 Histopathology of Seed-Borne Inf
Page 62 and 63: 3Structure of SeedsThe seed habit i
Page 64 and 65: Structure of Seeds 49(1971) of usin
Page 66 and 67: Structure of Seeds 51is found in as
Page 68 and 69: Structure of Seeds 53dry seed of Ly
Page 70 and 71: Structure of Seeds 553.3.2 SEED COA
Page 72 and 73: Structure of Seeds 57Endosperm: One
Page 74 and 75: Structure of Seeds 59scendembepsmuA
Page 76 and 77: Structure of Seeds 61Endosperm: Sca
Page 78 and 79: Structure of Seeds 63Chalaza simple
Page 80 and 81: Structure of Seeds 65stystypmerA Bc
Page 82 and 83: Structure of Seeds 67epsent endCADB
Page 84 and 85: Structure of Seeds 69perhscendembpe
Page 86 and 87: Structure of Seeds 71eposgepi′epo
Page 88 and 89: Structure of Seeds 73(Zea and Sorgh
Page 90 and 91: Structure of Seeds 75Baker, D.M. an
Page 92 and 93: Structure of Seeds 77Maheshwari Dev
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Structure of Seeds 79Vries, M.A. de
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82 Histopathology of Seed-Borne Inf
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TABLE 5.6Location of Mycelium of St
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7Seed Infection by VirusesViruses a
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Seed Infection by Viruses 201TABLE
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Seed Infection by Viruses 205Unlike
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Seed Infection by Viruses 2073. The
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Seed Infection by Viruses 209Wilcox
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Seed Infection by Viruses 213floret
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Seed Infection by Viruses 215ptowvv
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Seed Infection by Viruses 2177.4.2
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Seed Infection by Viruses 219seed(s
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Seed Infection by Viruses 221AMV fo
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Seed Infection by Viruses 223REFERE
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Seed Infection by Viruses 225Hunter
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Seed Infection by Viruses 227Wolf,
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