Výsledky vyhledávání - "Samson M. Kamunya"

UPLC-MS based metabolomics analysis reveals metabolite compositional differences between Kenyan Commercial and NonCommercial black tea (Camellia sinensis L.) cultivars

Autor: Christopher Nyarukowa, Richard Mose, Samson M. Kamunya, Zeno Apostolides, Robert. K. Koech

Publikováno v: Natural Resources for Human Health. 1:19-29

Camellia sinensis (L.) O. Kuntze (tea) is one of the most widely consumed beverages across the world, serving as an essential commodity crop for several developing countries. A bulk of tea’s health-promoting properties are attributed to the antioxi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31b8956e18de9d1a98c144e2b44f8b20
https://doi.org/10.53365/nrfhh/140906

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Molecular regulation of anthocyanin discoloration under water stress and high solar irradiance in pluckable shoots of purple tea cultivar

Autor: Samson M. Kamunya, Robert Kiplangat Korir, Karl Wilson Nyabundi, T. Maritim, R. C. Muoki, Francis N. Wachira

Publikováno v: Planta. 254

During water-deficit stress, antioxidant enzymes use anthocyanin molecules as co-substrates to scavenge for reactive oxygen species leading to reduced anthocyanin content and ultimately loss of purple leaf pigmentation in tea. Anthocyanins are an imp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ced2b6a32dcb86830f937d840c75f288
https://doi.org/10.1007/s00425-021-03736-8

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Construction of a DArT-seq marker–based genetic linkage map and identification of QTLs for yield in tea (Camellia sinensis (L.) O. Kuntze)

Autor: E. G. N. Mbanjo, M. P. Malebe, Samson M. Kamunya, Alexander Andrew Myburg, Robert. K. Koech, Zeno Apostolides

Publikováno v: Tree Genetics & Genomes. 17

As the second most consumed non-alcoholic beverage, the tea plant (Camellia sinensis) has high economic value. Tea improvement efforts that largely target economic traits such as yield have traditionally relied on conventional breeding approaches. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47d949623ce4bc72d71e5727831540d5
https://doi.org/10.1007/s11295-021-01491-1

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Combating Climate Change in the Kenyan Tea Industry

Autor: Wyclife Agumba Oluoch, John Bore, Chalo Richard Muoki, T. Maritim, Samson M. Kamunya

Publikováno v: Frontiers in Plant Science, Vol 11 (2020)
Frontiers in Plant Science

Climate change triggered by global warming poses a major threat to agricultural systems globally. This phenomenon is characterized by emergence of pests and diseases, extreme weather events, such as prolonged drought, high intensity rains, hailstones

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9724638dd23c8850137cc6da9cd09827

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Multiple origins and a narrow genepool characterise the African tea germplasm: concordant patterns revealed by nuclear and plastid DNA markers

Autor: Michael Möller, Moses C. Wambulwa, Samson M. Kamunya, M. K. Meegahakumbura, Alice Muchugi, De-Zhu Li, Lian-Ming Gao, Jie Liu, Jianchu Xu

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Scientific Reports

Despite the highly economic value of tea in Africa, its genetic and geographic origins remain largely unexplored. Here we address this by collecting 439 samples across 11 countries in Africa and Asia to investigate the origin and genepool composition

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::940cb80316d573e60250f8d17f0beafb
https://doaj.org/article/ad1c11cff5d041d7b80d0d15f3e942a7

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Genome-enabled prediction models for black tea (Camellia sisnesnsis) quality and drought tolerance traits

Autor: Pelly Masixolise Malebe, Samson M. Kamunya, Christopher Nyarukowa, Theodor Loots, Richard Mose, Zeno Apostolides, Robert. K. Koech

SummaryGenomic selection in tea (Camellia sinensis) breeding has the potential to accelerate efficiency of choosing parents with desirable traits at the seedling stage.The study evaluated different genome-enabled prediction models for black tea quali

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Combined linkage and association mapping of putative QTLs controlling black tea quality and drought tolerance traits

Autor: Zeno Apostolides, Robert. K. Koech, Samson M. Kamunya, Richard Mose

Publikováno v: Euphytica. 215

The advancements in genotyping have opened new approaches for identification and precise mapping of quantitative trait loci (QTL) in plants, particularly by combining linkage and association mapping (AM) analysis. In this study, a combination of link

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ef5808c6dd5f20fee214b350f393416
https://doi.org/10.1007/s10681-019-2483-5

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Influence of Geographical Regions on Catechin and Caffeine Levels in Tea (Camellia sinensis)

Autor: John K. Wanyoko, Francis N. Wachira, K. O. Moseti, Augustine Mutuku, Samson M. Kamunya, Richard M. Chalo, Samuel Kimutai, S. M. Karori

Publikováno v: American Journal of Plant Sciences. :562-571

This study aimed at investigating the influence of different growing conditions in two regions, Timbilil and Kangaita, on the levels of catechins and caffeine. Fresh leaf samples of 60 clones cultivated in both sites were obtained, processed and assa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d81f1ded546a7abf7b94874fa43514c
https://doi.org/10.4236/ajps.2016.73049

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