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1. Interrelationships between aspects of nitrogen metabolism and solute accumulation and the distribution of subtropical woody plants in southeast africa

Author:
J. PRIOR; J. TUOHY; J. WHITING
Source:
new phytologist 1987 v.107 no.2 pp. 427-439
ISSN:
0028-646X
Subject:
Acacia; Caesalpinioideae; Combretum; metabolites; nitrate reductase; nitrates; nitrogen metabolism; proline; quaternary ammonium compounds; savannas; solutes; stress tolerance; Africa
Abstract:
... Little is known of the mechanisms governing nitrogen metabolism and stress tolerance in woody plants of subtropical southeast African savannas, although many of the more widely occurring genera, particularly Acacia and Combretum species, include valuable multi‐purpose trees. Basal nitrate reductase activities in vigorous leaves from 59 species and five savanna areas were used as a measure of nitra ...
DOI:
10.1111/j.1469-8137.1987.tb00194.x

2. The pharmacological properties of the ethanolic root extract of Combretum dolichopetalum

Author:
Asuzu, I.U.; Njoku, J.C.
Source:
Phytotherapy research 1992 v.6 no.3 pp. 125-128
ISSN:
0951-418X
Subject:
Combretum; roots; plant extracts; pharmacology; ileum; rats; guinea pigs
DOI:
10.1002/ptr.2650060304

3. Hepatitis B surface antigen (HBsAg) inactivation and angiotensin-converting enzyme (ACE) inhibition in vitro by Combretum glutinosum Perr. (Combretaceae) extract

Author:
Pousset, J.L.; Rey, J.P.; Levesque, J.; Coursaget, P.; Galen, F.X.
Source:
Phytotherapy research 1993 v.7 no.1 pp. 101-102
ISSN:
0951-418X
Subject:
Combretum; medicinal plants; plant extracts; Hepatitis B virus; enzyme inhibitors; viral antigens; Africa
DOI:
10.1002/ptr.2650070126

4. Combreglutinin, a hydrolyzable tannin from Combretum glutinosum

Author:
Jossang, A.; Pousset, J.L.; Bodo, B.
Source:
Journal of natural products 1994 v.57 no.6 pp. 732-737
ISSN:
0163-3864
Subject:
Combretum; medicinal plants; tannins; spectral analysis; chemical constituents of plants; medicinal properties; molecular conformation; leaves; Senegal
DOI:
10.1021/np50108a008

5. Development of Included Phloem in the Stem of Combretum Nigricans (Combretaceae)

Author:
R. W. den Outer; W. L. H. van Veenendaal
Source:
IAWA journal v.16 no.2 pp. 151-158
ISSN:
0928-1541
Subject:
Combretum; cambium; crushing; parenchyma (plant tissue); secondary phloem; secondary xylem
Abstract:
... The development of diffuse included phloem strands in Combretum nigricans sterns is described, During a short period of time, a small phloem strand is cut off locally in an inward direction by an otherwise normal bidirectional vascular cambium. This contrasts with previous descriptions and interpretations because these strands are not formed after redifferentiation of secondary xylem parenchyma. A ...
DOI:
10.1163/22941932-90001401

6. Linking riparian vegetation types and fluvial geomorphology along the Sabie River within the Kruger National Park, South Africa

Author:
VAN COLLER, ALAN; ROGERS, KEVIN; HERITAGE, GEORGE
Source:
African journal of ecology 1997 v.35 no.3 pp. 194-212
ISSN:
0141-6707
Subject:
Combretum; Diospyros; Erythrophyllum; Phragmites; Phyllanthus; bedrock; geomorphology; hydrology; national parks; rivers; species diversity; vegetation types; South Africa
Abstract:
... Vegetation types were studied in relation to the fluvial geomorphology along the mixed bedrock-alluvial Sabie River within the Kruger National Park, Mpumalanga, South Africa. Six vegetation types were identified using TWINSPAN analysis, namely: Phragmites mauritianus, Phyllanthus reticulatus, Breonadia salicina, Combretum erythrophyllum, Diospyros mespiliformis and Spirostachys africana vegetation ...
DOI:
10.1111/j.1365-2028.1997.090-89090.x

7. Nucleated Wood Fibres in Some Members of Combretaceae

Author:
Kishore S. Rajput; K. S. Rao
Source:
IAWA journal v.20 no.1 pp. 79-83
ISSN:
0928-1541
Subject:
Anogeissus; Combretum; Quisqualis; Terminalia; crystals; protoplasts; shrubs; trees; wood anatomy; wood fibers
Abstract:
... The wood fibres retain their living protoplast in eleven species of five genera of the Combretaceae. Among the species studied, those of Anogeissus and Terminalia are trees while those of Calycopteris, Combretum and Quisqualis are large scandent shrubs. Living fibres with oval to oblong or fusiform shaped nuclei were found among all the species but their occurrence is more persistent in trees than ...
DOI:
10.1163/22941932-90001551

8. Differences between banded thickets (tiger bush) at two sites in West Africa

Author:
Pierre Couteron; Ali Mahamane; Paul Ouedraogo; Josiane Seghieri
Source:
Journal of vegetation science 2000 v.11 no.3 pp. 321-328
ISSN:
1100-9233
Subject:
Combretum; periodicity; seedlings; spatial distribution; edaphic factors; flora; climatic factors; vegetation; Western Africa
Abstract:
... This paper deals with the influence of edaphic conditions on the spatial structure of banded thickets or tiger bush (brousse tigrée). It is based on two sites in West Africa, with similar climatic conditions but located on contrasting substrates. The spatial structure was described with standardized characteristics including thicket spacing, thicket/inter‐thicket contrast, upslope/downslope asymme ...
DOI:
10.2307/3236624

9. Plant responses and herbivory following simulated browsing and stem cutting of Combretum apiculatum

Author:
Roger Bergström; Christina Skarpe; Kjell Danell
Source:
Journal of vegetation science 2000 v.11 no.3 pp. 409-414
ISSN:
1100-9233
Subject:
Combretum; biomass; browsing; budbreak; cutting; dry season; herbivores; insects; leaf area; plant response; savannas; shoots; trees; wet season
Abstract:
... Time and mode of herbivory on savanna trees and their subsequent responses are dependent on, among other things, earlier herbivory and fire. We used clipping (simulated browsing) and stem cutting (simulated heavy browsing and to some extent simulated fire) to evaluate such interactions. Study organisms were a deciduous, broad‐leaved tree species, Combretum apiculatum (Combretaceae), browsing large ...
DOI:
10.2307/3236633

10. Quadranosides I-V, new triterpene glucosides from the seeds of Combretum quadrangulare

Author:
Adnyana, I.K.; Tezuka, Y.; Banskota, A.H.; Xiong, Q.; Tran, K.Q.; Kadota, S.
Source:
Journal of natural products 2000 v.63 no.4 pp. 496-500
ISSN:
0163-3864
Subject:
Combretum; medicinal plants; seeds; triterpenoids; glycosides; spectral analysis; chemical structure; antineoplastic agents; liver neoplasms; tumor necrosis factors; galactosamine; chemical constituents of plants; Vietnam
DOI:
10.1021/np990581+
PubMed:
10785422

11. Thirteen novel cycloartane-type triterpenes from Combretum quadrangulare

Author:
Banskota, A.H.; Tezuka, Y.; Kim Qui Tran.; Tanaka, K.; Saiki, I.; Kadota, S.
Source:
Journal of natural products 2000 v.63 no.1 pp. 57-64
ISSN:
0163-3864
Subject:
Combretum; medicinal plants; leaves; triterpenoids; spectral analysis; chemical structure; chemical constituents of plants; Vietnam
DOI:
10.1021/np990336q
PubMed:
10650080

12. Effect of small catchment dams on downstream vegetation of a seasonal river in semi-arid African savanna

Author:
O'Connor, T.G.
Source:
Journal of applied ecology 2001 v.38 no.6 pp. 1314-1325
ISSN:
0021-8901
Subject:
Combretum; canopy; Faidherbia albida; riparian forests; watersheds; water flow; seasonal variation; dieback; habitats; mortality; South Africa
DOI:
10.1046/j.0021-8901.2001.00680.x

13. Spatial utilization by black-backed jackals in southeastern Botswana

Author:
S.K.K. Kaunda
Source:
African zoology 2001 v.36 no.2 pp. 143-152
ISSN:
2224-073X
Subject:
Canis mesomelas; Combretum; Croton; agricultural land; conservation areas; floodplains; foraging; grasslands; habitats; home range; jackals; predator avoidance; savannas; trees; winter; Botswana
Abstract:
... Space use by black-backed jackals was investigated between November 1995 and February 1997 in the Mokolodi Nature Reserve (MNR) in southeastern Botswana. Mean aggregate home-range size for the three radio-collared jackals was 15.9 km². Mean home-range size varied between seasons with a tendency for range expansion during winter. The first two radio-collared jackals had similar activity patterns an ...
DOI:
10.1080/15627020.2001.11657132

14. Three new triterpenes from the seeds of Combretum quadrangulare and their hepatoprotective activity

Author:
Adnyana, I.K.; Tezuka, Y.; Banskota, A.H.; Tran, K.Q.; Kadota, S.
Source:
Journal of natural products 2001 v.64 no.3 pp. 360-363
ISSN:
0163-3864
Subject:
Combretum; seeds; triterpenoids; spectral analysis; chemical structure; hepatocytes; tumor necrosis factors; antineoplastic agents; chemical constituents of plants; Vietnam
DOI:
10.1021/np000486x
PubMed:
11277757

15. Preliminary studies on the analgesic properties of the ethanol extracts of Combretum leprosum

Author:
Lira, S.R. de S.; Almeida, R.N.; Almeida, F.R. de C.; Oliveira, F. de S.; Duarte, J.C.
Source:
Pharmaceutical biology 2002 v.40 no.3 pp. 213-215
ISSN:
1388-0209
Subject:
Combretum; stems; phytotoxicity; animal experimentation; medicinal plants; plant extracts; mice; animal models; lethal dose; analgesics; medicinal properties; bark; Brazil
DOI:
10.1076/phbi.40.3.213.5837

16. Trends in savanna structure and composition along an aridity gradient in the Kalahari

Author:
Scholes R. J.; Dowty P. R.; Caylor K.; Parsons D. A B.; Frost P. G H.; Shugart H. H.
Source:
Journal of vegetation science 2002 v.13 no.3 pp. 419-428
ISSN:
1100-9233
Subject:
Combretum; Colophospermum mopane; Terminalia; Acacia; soil; groundwater; trees; rain; woody plants; savannas; sand; biomass; stand basal area; vegetation structure
Abstract:
... The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep aeolian soils, and a strong south to north gradient in rainfall, from 200 to 1000 mm mean annual precipitation (MAP) in the region studied. This provides an excellent basis for gradient studies at the subcontinental scale. This paper briefly reviews the literature on the vegetation of the ...
DOI:
10.1658/1100-9233(2002)013[0419:TISSAC]2.0.CO;2

17. Isolation and synthesis of new bioactive ellagic acid derivative from Combretum yunnanensis

Author:
Asami, Y.; Ogura, T.; Otake, N.; Nishimura, T.; Xinsheng, Y.; Sakurai, T.; Nagasawa, H.; Sakuda, S.; Tatsuta, K.
Source:
Journal of natural products 2003 v.66 no.5 pp. 729-731
ISSN:
0163-3864
Subject:
Combretum; glycosidic linkages; humans; Human immunodeficiency virus 1; phytochemicals; cytotoxicity; aspartic proteinases; plant extracts; ellagic acid; biochemical pathways; rhamnose; spectral analysis; protons; branches; cell lines; enzyme inhibition; glycosides
DOI:
10.1021/np030041j

18. The effect of supplementation with fresh browse of Ziziphus mauritiana or Combretum aculeatum on feed intake, nitrogen utilization and growth of grazing range sheep

Author:
Sangare, M.; Fernandez-Rivera, S.; Hiernaux, P.; Pandey, V.S.
Source:
Tropical animal health and production 2003 v.35 no.5 pp. 465-476
ISSN:
0049-4747
Subject:
nitrogen balance; grazing; animal production; digestibility; ammonium nitrogen; biogeochemical cycles; Combretum; forage composition; range livestock; feces; browsing; sheep breeds; dry season; rumen fermentation; Ziziphus mauritiana; dry matter intake; semiarid zones; protein intake; neutral detergent fiber
PubMed:
14620591

19. Post-fallow decomposition of woody roots in the West African savanna

Author:
Manlay, R.J.; Masse, D.; Chevallier, T.; Russell-Smith, A.; Friot, D.; Feller, C.
Source:
Plant and soil 2004 v.260 no.1-2 pp. 123-136
ISSN:
0032-079X
Subject:
Dichrostachys cinerea; Combretum; Terminalia; woody plants; roots; degradation; decayed wood; biomass; savanna soils; fallow; arid zones; humid tropics; Senegal

20. The development of immunoassays to identify and quantify species source of gum arabic

Author:
Ireland, H.E.; Clutterbuck, A.; Cloquet, J.P.; Thurston, M.I.; Williams, P.A.; Cronk, Q.C.; Dewey, F.M.; Williams, J.H.H.
Source:
Journal of agricultural and food chemistry 2004 v.52 no.26 pp. 7804-7808
ISSN:
0021-8561
Subject:
Combretum; cross reaction; Acacia seyal; thickeners; Senegalia mellifera; gum arabic; enzyme-linked immunosorbent assay; emulsifiers; monoclonal antibodies; adulterated products; Senegalia senegal; stabilizers; food additives
Abstract:
... Gum arabic from Acacia senegal is commonly used as an additive in foodstuffs. Adulteration of gum arabic by other gums is a potential problem for reasons of safety and quality. This study aimed to develop and evaluate the use of enzyme-linked immunosorbent assays (ELISAs) for the detection of potential adulterants of gum arabic. Indirect competitive ELISAs (IC-ELISAs) were developed using the mono ...
DOI:
10.1021/jf048864h