Browsing Environmental Health by Title

Now showing items 1-20 of 185

ABC transporter genes ABC-C6 and ABC-G33 alter plant-microbeparasite interactions in the rhizosphere

Cox, D. E.; Dyer, S.; Weir, R.; Cheseto, X.; Sturrock, R.; Coyne, D.; Torto, B.; Maule, A. G.; Dalzell, J. J. (Nature, 2019)

Plants are master regulators of rhizosphere ecology, secreting a complex mixture of compounds into the soil, collectively termed plant root exudate. Root exudate composition is highly dynamic and functional, mediating ...
Abundance and community composition of flower visiting insects of avocado (Persea Americana Mill) in the East African region

Evelyn N. Okello; Nelson O. Amugune; Titus K. Mukiama; H. Michael, G. Lattorff (International Journal of Tropical Insect Science, 2021)

Pollination of avocado flowers is essential for fruit production and is facilitated by various insect taxa. Currently, there is limited information available on the community structure of the pollinators of avocado crops ...
Aethina tumida (Coleoptera: Nitidulidae) and Oplostomus haroldi (Coleoptera: Scarabaeidae): Occurrence in Kenya, Distribution Within Honey Bee Colonies, and Responses to Host Odors

TORTO, BALDWYN; FOMBONG, AYUKA T.; MUTYAMBAI, DANIEL M.; MULI, ELIUD; ARBOGAST, RICHARD T.; TEAL, PETER E. A (Entomological Society of America, 2010)

Aethina tumida Murray (Coleoptera: Nitidulidae) is considered a minor parasitic pest of African honey bee, Apis mellifera L. (Hymenoptera: Apidae), colonies, but little information is available on other coleopteran pests. ...
Affordable Processing of Edible Orthopterans Provides a Highly Nutritive Source of Food Ingredients

Forkwa, Tengweh Fombong; John, Kinyuru; Jeremiah, Ng’ang’a; Monica, Ayieko; Chrysantus, Mbi Tanga; Jozef, Vanden Broeck; Mik, Van Der Borght (MDPI Foods, 2021)

Edible orthopterans (grasshoppers, crickets, and locusts) are major delicacies, especially across sub-Saharan Africa. Their promotion as food ingredients is increasingly gaining momentum.This study evaluates the nutritional ...
African Endemic Stingless Bees as an Efficient alternative Pollinator to Honey bees in Greenhouse Cucumber (Cucumis sativus L)

Nkoba, Kiatoko; Maria, I. Pozo; Annette, Van Oystaeyen; Maurice, Musonye; Junior, Kika; Felix, Wäckers; Frank, van Langevelde; Baerbel, Hundt; Juliana, Jaramillo (Taylor & Francis, 2022)

The current honey bee decline necessitates the use of alternative native pollinators to ensure global food security. Here, we compared the pollination behaviour and efficiency of the African honey bee (Apis mellifera) and ...
African Platyplectrus Ferrière (Hymenoptera: Eulophidae) from Kenya, with description of nine new species

Zoya, Yefremova; Copeland, Robert (Zootaxa, 2023)

Eleven species of Platyplectrus have been recorded from the Afrotropical region. Ch. Ferrière described nine species in 1941: two of them as Platyplectrus (P. capensis and P. ornatus) and seven under Euplectromorpha ...
Ample glycosylation in membrane and cell envelope proteins may explain the phenotypic diversity and virulence in the Mycobacterium tuberculosis complex

Alemayehu, Godana Birhanu; Solomon, AbebeYimer; Shewit, Kalayou; Tahira, Riaz; Ephrem, Debebe Zegeye; Gunnstein, Norheim; Carol, Holm-Hansen; Abraham, Asefa; Markos, Abebe; Tone, Tønjum (nature.com, 2019)

Multiple regulatory mechanisms including post-translational modifcations (PTMs) confer complexity to the simpler genomes and proteomes of Mycobacterium tuberculosis (Mtb). PTMs such as glycosylation play a signifcant role ...
The Antiplasmodial Activity of Spermine Alkaloids Isolated from Albizia gummifera

Rukunga, G.M.; Muregi, F.W.; Tolo, F.M.; Omar, S.A.; Mwitari, P.; Muthaura, C.N.; Omlin, F.; Lwande, W.; Hassanali, A.; Githure, J.; Iraqi, F.W.; Mungai, G.M.; Kraus, W.; Kofi-Tsekpo, W.M. (Elsevier, 2007)

In the present study the methanolic extract of Albizia gummifera was fractionated into various fractions. These fractions were tested against choroquine sensitive (NF54) and resistant (ENT30) strains of Plasmodium falciparum. ...
Aroma characterization and consumer acceptance of four cookie products enriched with insect (Ruspolia differens) meal

Ochieng, Brian O.; Anyango, Joseph O.; Nduko, John M.; Mudalungu, Cynthia M.; Cheseto, Xavier; Tanga, Chrysantus M. (Scientific Reports, 2023)

This research aims to advance knowledge on the impact of four processing methods on volatile compounds from insect-based baked products (cookies) to provide insights on consumer acceptance. Samples were exposed to double ...
Bacterial diversity in the intestinal tract of the funguscultivating termite Macrotermes michaelseni (Sjöstedt)

Mackenzie, Lucy Mwende; Muigai, Anne Thairu; Osir, Ellie Onyango; Lwande, Wilber; Keller, Martin; Toledo, Gerardo (Academic Journals, 2007)

Microorganisms in the intestinal tracts of termites play a crucial role in the nutritional physiology of termites. The bacterial diversity in the fungus-cultivating Macrotermes michaelseni was examined using both molecular ...
Beneficial sterols in selected edible insects and their associated antibacterial activities

Cynthia, Muhavi Mudalungu; Hosea Oginda, Mokaya; Chrysantus, Mbi Tanga (Scientific Reports, 2023)

Edible insects are increasingly gaining popularity as research reveals multiple benefits. However, the rediscovery of natural products from insects as medicinal agents has received limited attention. This study aimed at ...
Best practices for colony management: a neglected aspect for improving honey bee colony health and productivity in Africa

Beatrice, T. Nganso; Victoria, Soroke; Angelina, F. Osabutey; Christian, W. W. Pirk; Tino, Johansson; Ntirenganya, Elie; Z. Ngalo, Otieno-Ayayo; Mohammed, M. Ibrahim; N. N., Ndungu; Workneh, Ayalew; Abebe, J. Wubie; Geraud, C. Tasse Taboue; Sidonie, T. Famenij; Bridget, O. Bobadoye; Freweini, Assefa; Sevgan, Subramanian (Journal of Apicultural Research, 2024)

Apiculture has a well-recognized role in enhancing food security by pollination services around the globe. Besides, apiculture is an extremely valuable income-generating and job-creating activity for millions of ...
Black soldier fly larval meal in feed enhances growth performance, carcass yield and meat quality of finishing pigs

S.Y, Chia; C.M., Tanga; I.M, Osuga; D.M, Mwangi; M., Githinji; T, Dubois; S, Ekesi; J.J.A., van Loon (Journal of Insects as Food and Feed, 2021)

Using black soldier fly (BSF, Hermetia illucens) larvae as a novel protein source substituting fishmeal (FM) in animal feeds is globally gaining momentum. BSF can be reared on agro-industrial residues. However, incorporating ...
Black Soldier Fly-Composted Organic Fertilizer Enhances Growth, Yield, and Nutrient Quality of Three Key Vegetable Crops in Sub-Saharan Africa

Abel O, Anyega; Nicholas K, Korir; Dennis, Beesigamukama; Ghemoh J, Changeh; Kiatoko, Nkoba; Sevgan, Subramanian; Joop J. A, van Loon; Marcel, Dicke; Chrysantus M, Tanga (Frontier in plant Science, 2021)

Worldwide, French beans (Phaseolus vulgarisL.), tomato (Solanum lycopersicumL.), andkales (Brassica oleraceaL.var. acephala) are considered economically important foodcrops. There is a rapid decline in their yield due to ...
Body size as a proxy of probing time and visitation rates on cucumber by two African stingless bees increase fruit quality and seed quantity

Kiatoko, Nkoba; Pozo, Maria I; Kasiera, Wendie; Kariuki, Sophia K.; Langevelde, Frank van; Hundt, Baerbel; Jaramillo, Juliana (Scientia Horticulturae, 2022)

Pollinators are of essential importance for sustainable agriculture. However, pollination efficiency depends on interacting factors such as pollinator behaviour and morphology. We compared the effect of probing time length ...
The butterfly Danaus chrysippus (Lepidoptera: Nymphalidae) in Kenya is Variably Infected with Respect to Genotype and Body Size by a Maternally Transmitted Male-killing Endosymbiont (Spiroplasma)

Herren, Jeremy A.; Gordon, Ian; Holland, PeterW. H.; Smith, David (International Centre of Insect Physiology and Ecolopgy, 2007)

Female-biased sex ratios in Danaus chrysippus (Linnaeus) (family Nymphalidae, subfamily Danainae, tribe Danaini) populations are attributed to the action of an endosymbiotic ‘male-killer’ bacterium of the genus Spiroplasma. ...
C-methylated and C-prenylated isoflavonoids from Root Extract of Desmodium Uncinatum

Guchu, Salome M.; Yenesew, Abiy; Tsanuo, Muniru K.; Gikonyo, Nicholas K.; Pickett, John A.; Hooper, Antony M.; Hassanali, Ahmed (Elsevier, 2007)

A pterocarpan, 1,9-dihydroxy-3-methoxy-2-methylpterocarpan (named uncinacarpan) and two isoflavanones, 5,7-dihydroxy-20,30,40- trimethoxy-6-(3-methylbut-2-enyl)isoflavanone (named uncinanone D) and 5,40-dihydroxy-7,20-di ...
Calibration of the SPEARpesticides bioindicator for cost-efective pesticide monitoring in East African streams

Akbar, A. Ganatra; Faith, Jebiwot Kandie; Ulrike, Fillinger; Francis, McOdimba; Baldwyn, Torto; Werner, Brack; Matthias, Liess; Henner, Hollert; Jeremias, M. Becker (Springer, 2021)

Background: Pesticides are washed from agricultural felds into adjacent streams, where even short-term exposure causes long-term ecological damage. Detecting pesticide pollution in streams thus requires the expensive monitor ...
Can black soldier fly Desmodium intortum larvae-based diets enhance the performance of Cobb500 broiler chickens and smallholder farmers' profit in Kenya?

Mary, M.Mutisya; Mawufe, K. Agbodzavu; John, N. Kinyuru; Chrysantus, M. Tanga; Mathew, Gicheha; Girma, Hailu; Daisy, Salifu; Zeyaur, Khan; Saliou, Niassy (Elsevier, 2021)

This study aimed to evaluate the performance of broiler chickens fed on 3 black soldier fly larvae (BSFL) (Hermetia illucens) and Greenleaf desmodium (Desmodium intortum)-based meals. We evaluated growth performance, carcass ...
Can encroached rangelands enhance carbon sequestration in the African Savannah?

Musekiwa, Nyasha B.; Angombe, Simon . T; Kambatuku, Jack; Mudereri, Bester Tawona; Chitata, Tavengwa (Trees, Forests and People, 2022)

Climate change and bush encroachment pose huge challenges to rangeland management in Namibia. These challenges require a holistic management approach that ensures consistent and optimum forage productivity and sustainability. ...

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