14 research outputs found
Preliminary data on microcharacters and chromosome number in Tornabenea species (Apiaceae) from Cape Verde islands
Tornabenea is a small Apiaceae genus that is endemic to the Cape Verde Islands. Its species differentiation is based just on a
few macromorphological characters: leaf shape, number and shape of umbel bracts and mericarp ribs. These characters vary
within each species and show high plasticity. Thus, in recent taxonomic data of the genus, there are different viewpoints as to
the number of species. Here, in order to improve the taxonomy of the genus, microcharacters of the vegetative and
reproductive structures of three taxa—T. insularis, T. annua and T. tenuissima—have been examined. The shape and
arrangement of hairs on the surface of the mericarps, and the presence and structure of starch grains are the only different
microcharacters noted in T. insularis and T. annua. Chromosome number of the latter two species is 2n¼18. Our
preliminary results disagree with the existing classifications of the genus Tornabenea. In fact, they do not lead to a clear
separation between T. insularis and T. annua. By contrast, it is easy to distinguish between these species and T. tenuissima,
which possesses more peculiar microcharacter
ЭССЕНЦИАЛЬНЫЕ МИКРОНУТРИЕНТЫ – КОМПОНЕНТЫ АНТИОКСИДАНТНОЙ ЗАЩИТЫ В НЕКОТОРЫХ ВИДАХ РОДА АLLIUM
One of the urgent tasks at the present time is to obtain and widely use functional foods that have antioxidant and anticarcinogenic effects, which serve not only to meet human needs in proteins, fats, carbohydrates, micro - and macronutrients, but also contribute to the immune system, improve the heart and other human organs. For food plants, rich in antioxidant protection components, include perennial onions, from the variety of wild species which are in demand by modern medicine are only very few. The Republic of Komi is classified as the most uncomfortable territories for human habitation. In the flora of the Komi Republic there are three types of perennial bows – Allium angulosum L., A. schoenoprasum L. and A. strictum Schrad. The collection of the Botanical garden of the Institute of biology, Komi scientific center includes more than 150 species. Comparison of the chemical composition of four types of onions from the Botanical gardens of the Komi scientific center and Moscow state University (MSU) showed that the total content of flavonoids in onions, Komi scientific center of the BS is much higher, and the content of selenium is lower than in the same types of BS, Moscow state University. In samples of onions sticking out in the Republic of Tuva, the Republic of Buryatia, in the Altai Mountains, the Se content is also much higher than in regional species. The soils of the Komi Republic are depleted Se, however, as shown by our research, wild and cultivated species of the genus Allium, are batteries of this trace element. According to our calculations, the use of 100 g of fresh herbs of chives may meet up to 60% of the daily needs of the human body in ascorbic acid, up to 94% manganese, 20% copper, 12% zinc.Одной из актуальных задач в настоящее время является получение и широкое использование продуктов функционального питания, обладающих антиоксидантным и антиканцерогенным действием, которые служат не только удовлетворению потребностей человека в белках, жирах, углеводах, микро- и макроэлементах, но и способствуют повышению иммунитета, улучшению работы сердца и других органов человека. К пищевым растениям, богатым компонентами антиоксидантной защиты, относят многолетние луки. Республика Коми отнесена к наиболее дискомфортным для проживания человека территориям. Во флоре Республики Коми встречается три вида многолетних луков – Allium angulosum L., A. schoenoprasum L. и A. strictum Schrad. Коллекция Ботанического сада Института биологии Коми НЦ УрО РАН (БС) насчитывает более 150 видов. Согласно полученным данным, содержание марганца, меди и цинка в почвах и фитомассе растений Республики Коми ниже мировых кларков. Сравнение химического состава четырех видов лука из коллекций Ботанических садов Коми НЦ и Московского государственного университета (МГУ) показало, что общее содержание флавоноидов в луках из БС Коми НЦ значительно выше, а содержание селена – ниже, чем в аналогичных видах из БС МГУ. В образцах лука торчащего, собранного в Республике Тува, Республике Бурятия, на Горном Алтае, содержание Se также значительно выше, чем в региональных видах. Почвы Республики Коми обеднены Se, однако, как показали наши исследования, дикорастущие и культивируемые виды рода Allium являются аккумуляторами этого микроэлемента. По нашим подсчетам, при употреблении 100 г свежей зелени шнитт-лука возможно удовлетворение до 60% суточной потребности организма человека в аскорбиновой кислоте, до 94% – марганца, 20% – меди, 12% – цинка. Организация комплексных исследований, направленных на оценку селенового и микронутриентного статуса населения республики, изучение их зонального распределения в различных типах почв и содержание эссенциальных микронутриентов в продуктах питания, культивируемых и дикорастущих растениях, произрастающих на данной территории, представляет большой интерес
Taxonomic revision ofPleurospermum Hoffm. and related genera of Umbelliferae II. The generaPleurospermum, Pterocyclus, Trachydium, Keraymonia, Pseudotrachydium, Aulacospermum, andHymenolaena
ESSENTIAL MICRONUTRIENTS – COMPONENTS OF ANTIOXIDANT PROTECTION IN SOME SPECIES ALLIUM
One of the urgent tasks at the present time is to obtain and widely use functional foods that have antioxidant and anticarcinogenic effects, which serve not only to meet human needs in proteins, fats, carbohydrates, micro - and macronutrients, but also contribute to the immune system, improve the heart and other human organs. For food plants, rich in antioxidant protection components, include perennial onions, from the variety of wild species which are in demand by modern medicine are only very few. The Republic of Komi is classified as the most uncomfortable territories for human habitation. In the flora of the Komi Republic there are three types of perennial bows – Allium angulosum L., A. schoenoprasum L. and A. strictum Schrad. The collection of the Botanical garden of the Institute of biology, Komi scientific center includes more than 150 species. Comparison of the chemical composition of four types of onions from the Botanical gardens of the Komi scientific center and Moscow state University (MSU) showed that the total content of flavonoids in onions, Komi scientific center of the BS is much higher, and the content of selenium is lower than in the same types of BS, Moscow state University. In samples of onions sticking out in the Republic of Tuva, the Republic of Buryatia, in the Altai Mountains, the Se content is also much higher than in regional species. The soils of the Komi Republic are depleted Se, however, as shown by our research, wild and cultivated species of the genus Allium, are batteries of this trace element. According to our calculations, the use of 100 g of fresh herbs of chives may meet up to 60% of the daily needs of the human body in ascorbic acid, up to 94% manganese, 20% copper, 12% zinc