Spontaneous occurrence of cytomixis during microsporogenesis in almond (Prunus amygdalus Batsch) and peach (P. persica Batsch).

Cytomixis in Brassica napus var. oleifera and Brassica campestris var. oleifera (Brassicaceae).

“…Both phenomena occurred between microsporocytes of B. campestris and B. napus. Although cytomixis is a common phenomenon among plants, the number of cells affected is usually, except for Vigna glaberscens (Sen and Bhattacharya 1988) and Prunus amygdalus (Soodan and Wafai 1987), for which the percentage of cytomixis was 41.42 and 97.00, respectively. In B. napus and B. campestris the percentage of affected cells ranged from 0.06 to 2.55%.…”

“…In B. napus and B. campestris the percentage of affected cells ranged from 0.06 to 2.55%. In addition to true cytomixis, cytoplasmic bridges joining adjacent cells are common in affected plants (Sarbhoy 1980, Basavaiah and Murthy 1987, Soodan and Wafai 1987, Consolaro and Pagliarini 1995. In some B. campestris cultivars the frequency of these connections was higher than the frequency of cytomixis (Table 1).…”

Cytomixis in Maize Microsporocytes.

“…The cell wall may dissolve at the point of contact forming a passage for chromatin or chromosome transfer. According to Soodan and Waffai (1987), the persistence of cytoplasmic channels between adjacent cells prevents their rounding off and the development of a callosis wall. This would create condi- The formation of these channels during advanced stages suggests that in the material studied here cytomixis may not have been due to cell wall malformation during premeiotic division resulting from calcium deficiency since the highest frequency of this abnormality was observed in a double-cross hybrid grown on corrected soil.…”

New insights into cytomixis: specific cellular features and prevalence in higher plants

“…It has been shown that, for example, cytomixis in the rape anthers is observable only in 0.06 % of the microsporocytes (De Souza and Pagliarini 1997) versus up to 96 % in the almond (Soodan and Wafai 1987). It has been also demonstrated that the number of cells involved in cytomixis varies in a wide range not only between individual plants of the same species, but also between different flowers of the same plant (Soodan and Wafai 1987;Peng et al 2003).…”

“…It has been shown that, for example, cytomixis in the rape anthers is observable only in 0.06 % of the microsporocytes (De Souza and Pagliarini 1997) versus up to 96 % in the almond (Soodan and Wafai 1987). It has been also demonstrated that the number of cells involved in cytomixis varies in a wide range not only between individual plants of the same species, but also between different flowers of the same plant (Soodan and Wafai 1987;Peng et al 2003). As a rule, the rate of cytomixis increases in response to stress factors acting on a plant, such as mutagens, increased temperatures, changes in the ploidy level, hybridization, and so on (Saraswathy Amma et al 1990;Ghaffari 2006;Sidorchuk et al 2007a;Kravets 2011).…”