Institutul de Genetică, Fiziologie şi Protecţie a Plantelor

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Subject: search.filters.subject.pigments

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    Extracts derived from spirulina cultivated on media with Cu and CuO nanoparticles as active agents for triticale seed priming
    (CEP USM, 2024) Cepoi, Liliana; Rudi, Ludmila; Chiriac, Tatiana; Zosim, Liliana; Iațco, Iulia; Rudic, Valeriu
    This study investigates the effects of seed priming in triticale using extracts from Arthrospira platensis cultivated with copper nanoparticles (CuNP) and copper oxide nanoparticles (CuONP). Results demonstrate significant increases in chlorophyll, carotenoid, and phenolic content, alongside enhanced antioxidant activity in the leaves. Notably, the treatment with nanoparticle-enriched extracts reduced malondialdehyde (MDA) levels, indicating a protective effect against oxidative stress. The findings suggest that spirulina-based extracts, even with the addition of nanoparticles, can enhance crop health, offering a sustainable approach to agriculture.
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    Some aspects of the winter wheat photosynthetic apparatus resistance to drought
    (CEP USM, 2024) Shevchenko, Viktor; Bondarenko, Oksana
    Changes in pigments and proteins content of chloroplast membranes in winter wheat varieties of different resistance under the influence of a drought were studied. The loss of pigments and main structural proteins was greater in less resistant varieties. It was established that the more resistant varieties differed in the increased content of low molecular weight proteins already in the control. Under the drought effects, the relative content of low molecular weight protective proteins increased. Thus, it is shown that the content of proteins of 36, 21 and 16 kDa can be one of the molecular markers of drought resistance.
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    CERCETĂRI PRIVIND ACȚIUNEA UNOR FERTILIZANȚI ORGANICI ASUPRA CREŞTERII ŞI PRODUCTIVITĂȚII LA ALUN
    (CEP USM, 2024) Griţcan, Sava; Dadu, Zinaida; Polihovici, Lidia
    The paper presents the results of the research carried out for the first time on the hazelnut culture regarding the fertilization with Orgazot and Grinex applied in the soil to the projection of the crown of the trees.Fertilizers improved the nutrient regime of the soil, increased the content of nitrogen, phosphorus and potassium in the leaves, which favored the accumulation of chlorophyll pigments (chlorophyll A, B and carotenoids), increased the growth of shoots and foliar surface of the leaves.The hazelnut harvest increased by 13% after the application of Grinex fertilizer and by 12%after Orgazot.