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

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Seed Infection by Viruses 215ptowvvlABVdsptdpsbCDFIGURE 7.5 TEM of pollinated ovaries before fertilization showing BSMV particles inpollen tube and its discharge in embryo sac. A, Large aggregate of virus particles in a segmentof pollen tube penetrating the ovary. B, Magnified view of large aggregate of virus particlesfrom A. Particles are surrounded by dense cytoplasmic material. C, Pollen tube dischargewithin the degenerating synergid. D, Portion from C enlarged to show aggregate of virusparticles in the discharge. (Abbreviations: ds, degenerating synergid; i, integument; ow, ovarywall; psb, polysaccharide body; pt, pollen tube; ptd, pollen tube discharge; v, virus particles.)(From Brlansky, R.H., Carroll, T.W., and Zaske, S.K. 1986. Can. J. Bot. 64: 853–858. Withpermission.)
216 Histopathology of Seed-Borne InfectionsarnarpdABnono7 cessynsynccnuCvecnoecDEFIGURE 7.6 TEM of female archesporium and cells of female gametophyte in ovules ofbarley infected with BSMV, MI-1 strain. A, Female archesporial cell beneath the protodermin ovule primordium. B, Portion outlined in A magnified showing virus particles in thecytoplasm (circles). C, Micropylar end of a seven-celled embryo sac with the surroundingnucellar cells. D, Portion of the embryo sac showing parts of egg, synergid, and central cell.E, Part of the egg cell showing encapsulated virus particles within the cytoplasm. (Abbreviations:ar, archesporium; cc, central cell; 7-ces, part of seven-celled embryo sac; ec, egg cell;n, nucleus; no, nucleolus; nu, nucellar cells; pd, protoderm layer of ovule primordiumepidermis;syn, synergid; v, virus.) (From Carroll, T.W. and Mayhew, D.E. 1976b. Can. J.Bot. 54: 2497–2512. With permission.)
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Histopathology ofSeed-Borne Infecti
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PrefaceThe book deals with only one
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The AuthorsDalbir Singh, Ph.D., for
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ContentsChapter 1 Introduction ....
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4.3.2 Routes for Infection from Ova
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8.4 Survival in Seed ..............
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2 Histopathology of Seed-Borne Infe
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4 Histopathology of Seed-Borne Infe
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2Reproductive Structuresand Seed Fo
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Reproductive Structures and Seed Fo
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14 Histopathology of Seed-Borne Inf
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3Structure of SeedsThe seed habit i
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Structure of Seeds 49(1971) of usin
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Structure of Seeds 51is found in as
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Structure of Seeds 53dry seed of Ly
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Structure of Seeds 553.3.2 SEED COA
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Structure of Seeds 57Endosperm: One
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Structure of Seeds 59scendembepsmuA
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Structure of Seeds 61Endosperm: Sca
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Structure of Seeds 63Chalaza simple
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Structure of Seeds 65stystypmerA Bc
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Structure of Seeds 67epsent endCADB
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Structure of Seeds 69perhscendembpe
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Structure of Seeds 71eposgepi′epo
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Structure of Seeds 73(Zea and Sorgh
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Structure of Seeds 75Baker, D.M. an
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Structure of Seeds 77Maheshwari Dev
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Structure of Seeds 79Vries, M.A. de
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100 Histopathology of Seed-Borne In
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TABLE 5.6Location of Mycelium of St
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Page 214 and 215: 7Seed Infection by VirusesViruses a
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Page 222 and 223: Seed Infection by Viruses 2073. The
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Page 238 and 239: Seed Infection by Viruses 223REFERE
Page 240 and 241: Seed Infection by Viruses 225Hunter
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