Prof. Dr. Nicolas Niemenak

Profil

Derzeitige StellungProfessor W-3 und Äquivalente
FachgebietPflanzenphysiologie,Zellbiologie
Keywordscacao quality - Water stress response, somatic embryogenesis, metabolites (amino acid, phenols, etc..), dehydrin, Theobroma cacao, temporary immersion system, embryo-specific genes expression

Aktuelle Kontaktadresse

LandKamerun
OrtYaounde
Universität/InstitutionUniversite de Yaounde I
Institut/AbteilungHigher Teachers' Training College, Department of Biological Science

Gastgeber*innen während der Förderung

Prof. Dr. Reinhard LiebereiInstitut für Angewandte Botanik, Universität Hamburg, Hamburg
Prof. Dr. Bernward BispingAbteilung für Lebensmittelchemie, Universität Hamburg, Hamburg
Prof. Dr. Sascha RohnInstitut für Lebensmitteltechnologie und Lebensmittelchemie, Technische Universität Berlin, Berlin
Prof. Dr. Nicolas NiemenakHigher Teachers' Training College, Department of Biological Science, Universite de Yaounde I, Yaounde
Prof. Dr. Thomas NeumannInstitut für Angewandte Geowissenschaften, Technische Universität Berlin, Berlin
Beginn der ersten Förderung01.06.2005

Programm(e)

2004Georg Forster-Forschungsstipendien-Programm

Publikationen (Auswahl)

2018Mouafi Djabou A.S., Qin Y., Boudjeko Th., Figueiredo P.G., Feifei A, Carvalho L. JCB, Omokolo N.D., Li K., Niemenak N. Chen S. Effects of Calcium and Magnesium Fertilization on Antioxidant Activities during Cassava Postharvest Physiological Deterioration. In: Crop Science , 2018, 1385-1392
2017Djabou A. S. M., Carvalho L. J. C. B., Li Q.X., Niemenak N., Chen S. Cassava postharvest physiological deterioration: a complex phenomenon involving calcium signaling, reactive oxygen species and programmed cell death. In: Acta Physiologiae Plantarum , 2017, 91
2017Stoll L., Niemenak N., Bisping B., Lieberei R. German cacao of Cameroon ? new facts on a traditional variety fallen into oblivion.. In: Journal of Applied Botany and Food Quality , 2017, 274-279
2016Fotso B., Amoa Amoa J., Sery D.J.M., Nandjui J., Voko Bi R.D.R., Kouadio A. N. M.-S, Gbongue L. R., Niemenak N., Zeze A. Effects of soil physico-chemical properties on occurrence of arbuscular mycorrhizal fungi communities associated to plantain (Musa AAB, Musaceae) rhizosphere in Côte d’Ivoire. In: African Journal of Agricultural Science and Technology , 2016, 580-594
2016De Taeye C, Eyamo Evina VJ, Gaullet G, Niemenak N, Collin S. Fate of anthocyanins through cocoa fermentation. Emergence of new polyphenolic dimers.. In: Journal of Agricultural and Food Chemistry , 2016, 8876-8885
2016Eyamo Evina VJ, De Taeye C, Niemenak N, Youmbi E, Collin S. Influence of acetic and lactic acids on cocoa flavan-3-ol degradation through fermentation-like incubations.. In: LWT - Food Science and Technology, 2016, 514-522
2015Nzweundji JG, Niemenak N, Oumar, Tsafack JJ, Konan K, Nyochembeng L, Noumi C, Tchinda ND, Omokolo N D.: Biochemical profile of cuttings used for in vitro organogenesis of Prunus africana: An endangered species in Cameroon.. In: African Journal of Biotechnology, 2015, 2568-2575
2015Kadow D, Niemenak N, Rohn S, Lieberei R. 2015. Fermentation-like incubation of cocoa seeds (Theobroma cacao L.). Reconstruction and guidance of the fermentation process. In: LWT- Food Science and Technology, 2015, 357-361
2015Effa Onomo P, Niemenak N, Djocgoue PF, Ondobo ML, Omokolo ND. Heritability of polyphenols, anthocyanins and antioxidant capacity of Cameroonian cocoa (Theobroma cacao L.) beans. . In: African Journal of Biotechnology , 2015, 2672-2682
2015Niemenak N, Kaiser E, Maximova S, Laremore T, Guiltinan M. Proteome analysis during pod, zygotic and somatic embryos maturation of Theobroma cacao L.. In: Journal of Plant Physiology, 2015, 49-60
2014Maximova SN, Florez S, Shen X., Niemenak N., Zhang Y, Curtis W., Guiltinan MJ: Genome-wide analysis reveals divergent patterns of gene expression during zygotic and somatic embryo maturation of Theobroma cacao L., the chocolate tree. In: BMC Plant Biology, 2014, 185
2013Noah A.M., Niemenak N., Sunderhaus S., Haase C., Omokolo N.D., Winkelmann T., Braun H-P Comparative proteomic analysis of early somatic and zygotic embryogenesis in Theobroma cacao L. . In: Journal of Proteomics , 2013, 123-133
2013Niemenak N., Noah A.M., Omokolo N.D. Micropropagation of cocoyam (Xanthosoma sagittifolium L. Schott) in temporary immersion bioreactor.. In: Plant Biotechnology Reports, 2013, 383-390
2012Niemenak N. Tita M.A., Lieberei R.: Establishment of suspension culture in Theobroma cacao and polyamines associated with cacao embryogenesis.. In: Plant Growth Regulation, 2012, 1-8
2010Effa O.P., Niemenak N., Omokolo N.D., Lieberei R: Change in amino acids content during germination and seedling growth of Cola sp. In: African Journal of Biotechnology, 2010, 5632-5642
2010Niemenak N., Cilas C., Rohsius C., Meier U., Bleiholder H., Lieberei R: Phenological growth stages of cacao plants (Theobroma cacao L.) according to the BBCH scale. In: Annals of Applied Biology , 2010, 13-24
2010Minyaka E., Niemenak N., Issali E.A., Sangare A. Omokolo N.D.: Sulphur depletion altered somatic embryogenesis in Theobroma cacao L. Biochemical difference related to sulphur metabolism between embryogenic and non embryogenic calli. . In: African Journal of Biotechnology, 2010, 5665-5675
2008Laurence Alemanno, Martine Devic, Nicolas Niemenak, Christine Sanier, Jocelyne Guilleminot, Mariannick Rio, Jean-Luc Verdeil and Pascal Montoro: Characterization of leafy cotyledon1-like during embryogenesis in Theobroma cacao L. . In: Planta, 2008, 853-866
2008Niemenak N., Onomo P.E., Fotso, Lieberei R., Ndoumou D.O.: Purine alkaloids and phenolic compounds in three Cola species and Garcinia kola grown in Cameroon. In: South Africa Journal of Botany DOI 10.1016/j.sajb.2008.03.003 (in press), 2008,
2008Nicolas Niemenak, Katja Saare-Surminski, Christina Rohsius,Denis Omokolo Ndoumou and Reinhard Lieberei: Regeneration of somatic embryos in Theobroma cacao L. in temporary immersion bioreactor and analyses of free amino acids in different tissues . In: Plant Cell Reports, 2008, 667-676
2007Jean-Luc Verdeil, Laurence Alemanno, Nicolas Niemenak and Timothy John Tranbarger : Pluripotent versus totipotent plant stem cells: dependence versus autonomy?. In: Trends in Plant Science , 2007, 245-252
2006Nicolas Niemenak, Christina Rohsius, Silke Elwers,Denis Omokolo Ndoumou and Reinhard Lieberei : Comparative study of different cocoa (Theobroma cacao L.) clones in terms of their phenolics and anthocyanins contents . In: Journal of Food Composition and Analysis , 2006, 612-619