Abstract
Photosynthetically active callus and cell suspension cultures were established from uninfected Lycopersicon peruvianum plants and from uninfected and potato spindle tuber viroid (PSTVd) infected plants of Lycopersicon esculentum cv. Rutgers. Viroid infection was maintained in photoheterotrophic culture on media containing 3% sucrose, but during continuous photo-mixotrophic culture in low sucrose media (1% sucrose), the level of PSTVd accumulation decreased. Photoautotrophic cell suspensions could be established with uninfected, but not with viroid infected tomato cells. As compared to uninfected cells, PSTVd infected cells grew slowly, were morphologically different in size and shape, and formed tight cell aggregates. Electronmicroscopy showed that starch accumulation in chloroplasts, deformation of the chloroplast envelope and irregular plasmalemmasomes at the cell membrane were associated with PSTVd infection.
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Abbreviations
- 2,4-D:
-
2,4-Dichlorophenoxyacetic acid
- BAP:
-
6-benzylaminopurine
- CEVd:
-
citrus exocortis viroid
- CSVd:
-
chrysanthemum stunt viroid
- PSTVd:
-
potato spindle tuber viroid
- TMV:
-
tobacco mosaic virus
- phc:
-
photoheterotrophic cell culture
- mcc:
-
photomixotrophic cell culture
- pcc:
-
photoautotrophic cell culture
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Communicated by H. Lörz
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Stöcker, S., Guitton, MC., Barth, A. et al. Photosynthetically active suspension cultures of potato spindle tuber viroid infected tomato cells as tools for studying viroid — host cell interaction. Plant Cell Reports 12, 597–602 (1993). https://doi.org/10.1007/BF00232806
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DOI: https://doi.org/10.1007/BF00232806