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Occurrence of Mycoplasma‐like Organisms in Parenchyma Cells of Cuscuta odorata (Ruiz et Pav.)
Author(s) -
Siller W.,
Kuhbandner B.,
Marwitz R.,
Petzold H.,
Seemüller E.
Publication year - 1987
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1987.tb00477.x
Subject(s) - biology , parenchyma , phloem , cuscuta , endodermis , botany , sieve tube element , vascular tissue , vascular bundle
In shoots of the dodder Cuscuta odorata mycoplasma‐like organisms (MLO) were observed to occur in nearly all mature sieve elements. Their frequency within the sieve elements varied from a few organisms to high concentrations. In addition, MLO, were found in other cell types. By identifying these cells and investigating the location in the vascular tissue three different types of cells infected with MLO could be distinguished: (1) phloem parenchyma cells, (2) parenchyma cells separating the five vascular bundles of C. odorata and (3) cells in the outer region of the vascular system next to the cells looking like an endodermis. Within the cells of the types 2 and 3, MLO occurred in large numbers and at different morphological structures., Therefore, we assume that the MLO multiply in these cells.