An anomalous form of mycoplasma-like bodies in periwinkle infected with the sandal spike agent

Hiruki, C.; Dijkstra, Jeanne

doi:10.1007/bf01976685

Cited by 14 publications

(2 citation statements)

References 15 publications

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“…The abnormal mtracytoplasmic preservation reflected lack of viability. These bodies were interpreted as senescent stages of the in situ prokaryotes, closely resembling, in size and morphology, some of the degenerate MLO forms previously reported (HlRUMl andMARAMOROSCH 1972, HiRUKI andDiJKSTRA 1973).…”

Section: Discussionsupporting

confidence: 79%

Occurrence of Anomalous Mycoplasma‐like Organisms in Grapevine Yellows‐diseased Phloem

Credi

1994

Journal of Phytopathology

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Pathological changes in Vitis vinifera cv. Caveccia phloem from leaves showing symptoms of a flavescence doreé‐like disease consisted of obliteration, necrosis and collapse of the sieve elements and associated companion cells, and excessive callose accumulation in lateral sieve areas and sieve plates of apparently normal mature sieve elements. Unusual structures, also found in degenerate sieve elements of diseased leaf vein specimens, were strongly electron‐dense and bounded by a unit membrane or an electron‐transparent border, and considered to be senescent forms of mycoplasma‐like organisms. The significance of these findings in relation to possible host responses to the yellows pathogen is discussed.

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Section: Discussionsupporting

confidence: 79%

Occurrence of Anomalous Mycoplasma‐like Organisms in Grapevine Yellows‐diseased Phloem

Credi

1994

Journal of Phytopathology

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“…7A and 8A). Moreover, many necrotic cells occur in the phloem and in the cambial layers of old, diseased twigs (Dijkstra and Van der Want, 1970) and stems (Hiruki and Dijkstra, 1973a). Although no abnormal accumulation of callose could be detected in these necrotic cells, sieve elements in the proximity of the latter contained definitive callose (Hiruki and Dijkstra, 1973b).…”

Section: Discussionmentioning

confidence: 98%

A histochemical study on sandal (Santalum album) affected with spike disease and its diagnostic value

Dijkstra

Hiruki

1974

Netherlands Journal of Plant Pathology

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Fluorescence microscopy of cross sections of young twigs from sandal trees, stained with aniline blue, showed a marked difference in fluorescence in the phloem area of healthy and spike-diseased trees. In sections of twigs from healthy trees fluorescence was restricted to the outer zone of the phloem whereas the phloem zone in spike-diseased trees fluoresced over its total area. Older twigs and leaves, but not roots, showed a similar phenomenon. The diagnostic value of this method is discussed.

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Mycoplasma-like Organisms

Smith¹

1977

Plant Viruses

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An anomalous form of mycoplasma-like bodies in periwinkle infected with the sandal spike agent

Cited by 14 publications

References 15 publications

Occurrence of Anomalous Mycoplasma‐like Organisms in Grapevine Yellows‐diseased Phloem

Occurrence of Anomalous Mycoplasma‐like Organisms in Grapevine Yellows‐diseased Phloem

A histochemical study on sandal (Santalum album) affected with spike disease and its diagnostic value

Mycoplasma-like Organisms

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