Metaxenia in the Vine Cacti Hylocereus polyrhizus and Selenicereus spp.
نویسندگان
چکیده
منابع مشابه
Genetic relationships among Hylocereus and Selenicereus vine cacti (Cactaceae): evidence from hybridization and cytological studies.
BACKGROUND AND AIMS Hylocereus and Selenicereus are native to tropical and sub-tropical America. Based on its taxonomic status and crossability relations it was postulated that H. megalanthus (syn. S. megalanthus) is an allotetraploid (2n = 4x = 44) derived from natural hybridization between two closely related diploid taxa. The present work aimed at elucidating the genetic relationships betwee...
متن کاملCytology and mating systems in the climbing cacti Hylocereus and Selenicereus.
Chromosome numbers and meiotic behavior are reported for the climbing cacti species Hylocereus undatus, Hylocereus polyrhizus, and Selenicereus megalanthus. The Hylocereus spp. are diploid (2n = 22), while S. megalanthus is a tetraploid (2n = 44). Irregular chromosome disjunction at anaphase I in pollen mother cells of S. megalanthus is probably the major cause of its reduced pollen viability a...
متن کاملThe Effect of Hylocereus polyrhizus and Hylocereus undatus on Physicochemical, Proteolysis, and Antioxidant Activity in Yogurt
Yogurt is a coagulated milk product obtained from the lactic acid fermentation by the action of Lactobacillus bulgaricus and Streptococcus thermophilus. The additions of fruits into milk may enhance the taste and the therapeutical values of milk products. However fruits also may change the fermentation behaviour. In this present study, the changes in physicochemical, the peptide concentration, ...
متن کاملBetalain extraction from Hylocereus polyrhizus for natural food coloring purposes
Coloring preparations from Hylocereus polyrhizus have recently received attention because peel and/or aril of the fruit exhibit a high content of betacyanins. These pigments are of special interest due to their potential as a red food colorants with a high stability at neutral pH. To improve production yield and to obtain a concentrated Hylocereus fruit extract, Pectinex Ultra SP–L in various d...
متن کاملShort Communication Antibacterial property of Hylocereus polyrhizus and Hylocereus undatus peel extracts
Food-borne diseases have always been a major concern to the consumers, food safety authorities and food industries. Hylocereus spp or Pitaya peels are normally treated as wastes and will be discarded during processing. In this study, the antibacterial activity of ethanol, chloroform and hexane extracts from Hylocereus polyrhizus (red flesh pitaya) and Hylocereus undatus (white flesh pitaya) pee...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2004
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mch055