Studies on Pavetta (Rubiaceae) II. Enumeration of species and synonymy

Kok, P.D.F.; Grobbelaar, N.

doi:10.1016/s0022-4618(16)30046-8

Cited by 8 publications

(7 citation statements)

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“…kerii by Pieridae and R. sootepensis by Hesperiidae. Different studies showed that P. schumanniana, P. cooperi and P. lanceolata produce white scented flowers; the first one is pollinated by moths which forage at twilight or at night while the other two by birds, bees, wasps, beetles, ants and moths (Bremekamp 1934;van Wyk 1974;Kok & Grobbelaar 1984;Johnson & Nichols 2002). In this study, P. indica with white, fragrant, tubular flowers with actinomorphic symmetry and functional hermaphroditism is principally pollinated by butterflies (especially papilionids, pierids and nymphalids) and sphingid hawk moths, and accidentally pollinated by bees.…”

Section: Discussionmentioning

confidence: 99%

“…P. schumanniana, P. cooperi and P. lanceolata produce white scented flowers; the first one is pollinated by moths which forage at twilight or at night while the other two by birds, bees, wasps, beetles, ants and moths. Their black, fleshy fruits appear to be dispersed by birds and monkeys (Bremekamp 1934;van Wyk 1974;Kok & Grobbelaar 1984;Johnson & Nichols 2002). In the monograph of the genus Pavetta, Bremekamp (1934) provided a brief account on P. indica.…”

Section: Introductionmentioning

confidence: 99%

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Pollination ecology and fruiting behavior of Pavetta indica L. (Rubiaceae), a keystone shrub species in the southern Eastern Ghats forest, Andhra Pradesh, India

et al. 2016

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C omm u n fi c a ft fi o n P o fl fl fi n a ft fi o n e c o fl o g y a n d f r u fi ft fi n g b e h a v fi o r o f P a v e ft ft a fi n d fi c a L . ( R u b fi a c e a e ) , a k e y s ft o n e s h r u b s p e c fi e s fi n ft h e s o u ft h e r n E a s ft e r n G h a ft s f o r e s ft , A n d h r a P r a d e s h , I n d fi a A . J . S o fl om o n R a j u , M . M a fl fl fi k a r j u n a R a o , K . V e n k a ft a R am a n a , C . P r a s a d a R a o & M . S u fl a k s h a n a

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pollination ecology and fruiting behavior of Pavetta indica L. (Rubiaceae), a keystone shrub species in the southern Eastern Ghats forest, Andhra Pradesh, India

et al. 2016

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“…In southern Africa alone there occur more than 30 species of Pavetta [19,20]. It would be helpful to determine if in any of these plants the toxic principle is present and in which order of magnitude.…”

Section: Introductionmentioning

confidence: 99%

Distribution of the cardiotoxin pavettamine in the coffee family (Rubiaceae) and its significance for gousiekte, a fatal poisoning of ruminants

Elst¹,

Nuyens²,

Wyk³

et al. 2013

Plant Physiology and Biochemistry

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Gousiekte, a cardiac syndrome of ruminants in southern Africa, is caused by the ingestion of plants containing the polyamine pavettamine. All the six known gousiekte-causing plants are members of the Rubiaceae or coffee family and house endosymbiotic Burkholderia bacteria in their leaves. It was therefore hypothesized that these bacteria could be involved in the production of the toxin. The pavettamine level in the leaves of 82 taxa from 14 genera was determined. Included in the analyses were various nodulated and non-nodulated members of the Rubiaceae. This led to the discovery of other pavettamine producing Rubiaceae, namely Psychotria kirkii and Ps. viridiflora. Our analysis showed that many plant species containing bacterial nodules in their leaves do not produce pavettamine. It is consequently unlikely that the endosymbiont alone can be accredited for the synthesis of the toxin. Until now the inconsistent toxicity of the gousiekte-causing plants have hindered studies that aimed at a better understanding of the disease. In vitro dedifferentiated plant cell cultures are a useful tool for the study of molecular processes. Plant callus cultures were obtained from pavettamine-positive species. Mass spectrometric analysis shows that these calli do not produce pavettamine but can produce common plant polyamines.

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“…Several authors, e.g. Bridson (1978) and Kok & Grobbelaar (1984), main tained that Bremekamp not only recognized too many species but that some of the species delimitations were unsatisfactory. Subsequently several of his species were placed in synonymy by Bridson (1978) and Kok & Grobbelaar (1984).…”

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confidence: 99%

“…Pavetta zeyheri Sond. Kok & Grobbelaar (1984) listed 10 names as synonyms under P. zeyheri including P microlancea K.Schum., P. middelburgensis Bremek. and P lasiopeplus K.Schum.…”

mentioning

confidence: 99%