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2.
Ceylon Med J ; 55(2): 54-6, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20645546

ABSTRACT

Ingestion of 'Binthamburu' (Ipomoea asarifolia) by misidentification as 'kankun' (Ipomoea aquatica) as a leafy vegetable causes acute gastrointestinal symptoms and confusion. The authors have encountered four such cases in the past. All cases have been recorded from the dry zone of the country. Both plants are two trailing vines similar in their appearance and preferring the wet habitats. During the course of the day when exposed to sunlight, 'binthamburu' leaves mimic 'kankun' leaves by folding the leaf margins making it difficult to separate the two during harvest and only a closer examination will reveal the difference in their leaf shapes. Ipomoea asarifolia toxicity in human has not been recorded but animal toxicity in North Brazil due to ingestion of Ipomoea asarifolia had been investigated and linked to a toxic substance identified as lectin or LTS.


Subject(s)
Ipomoea/poisoning , Adult , Humans
3.
Plant Cell Rep ; 27(11): 1697-703, 2008 Nov.
Article in English | MEDLINE | ID: mdl-18712524

ABSTRACT

Anther culture was used to obtain dihaploid (DH) coconut plants and their ploidy level was determined by flow cytometric analysis. Simple sequence repeat (SSR) marker analysis was conducted to identify the homozygous diploid individuals. Ploidy analysis showed that 50% of the tested plantlets were haploid and 50% were diploid. Polymorphic fragments of the mother palm and their segregation patterns in anther-derived plantlets were used to determine the origin of the diploid plantlets. Using a diagnostic SSR marker (CNZ43), all the diploid plantlets tested were identified as being derived from microspores (i.e. were homozygous) and were thus candidates for use in coconut breeding programs.


Subject(s)
Cocos/genetics , Genetic Markers , Homozygote , Repetitive Sequences, Nucleic Acid , Base Sequence , DNA Primers , Flow Cytometry , Ploidies
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