OALib Journal期刊

ISSN: 2333-9721




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匹配条件: “I. MOLDOVAN” ,找到相关结果约87482条。
The epidermal study of sweet chestnut-tree Leaf (Castanea sativa Mill.)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1992,
Abstract: This paper is part of a broader study on the ontogenetic evolution of C. sativa. On detached epidermis, obtained by different methods, the following structural aspects have been studied: the shape and size of the cells of each sample and their number on surface unity, the type of stomata, the size of stomata, the number of stomata on surface unity and the stomatic index. At the same time remarks have been made concerning the protecting and secretive hairs of each sample.
Seminifagous insects growing on inflorescences of Centaurea species (Asteraceae)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1989,
Abstract: A study was performed on the entomofauna growing on inflorescences of 14 Centaurea species, the most common found in the Romanian flora. Eleven species of Thephritidae-diptera were evidenced their larvae feeding on Centaurea flowers and seeds. Some species of Thephritidae-diptera as: Chaetorelia jacea, Urophora jaceana, U. quadrifasciata, strongly infesting various Centaurea species, problem weeds of some natural or cultivated ecosystems, become phytophagous and have a most significant share in the biological control of those weeds.
Host-plants for seminiphagous insects IV (Brassicaceae, Campanulaceae, Caryophyllaceae, Euphorbiaceae, Geraniaceae, Resedaceae and Scrophulariaceae)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1987,
Abstract: During the period 1970-1984 inflorescences with fruits and seeds have been collected, from 14 host-plants of several botanical families and the species of insects feeding on their flowers, fruits and seeds have been identified. The species of seminiphagous have been for the first time obtained in our country by the method of pure cultures in laboratory conditions. The following species of seminiphagous have been identified in the fruits and seeds of these cultivated or spontaneous species of host-plants: Gymnetron campanullae L., Sibinia pellucens Scop., Ceuthorrynchus assimilis Payk., Gymnetron anthyrrhinii Payk., G. netum L., Systole euphorbiae Zer. Among the identified seminiphagous species, Gymnetron campanullae L., Systole euphorbiae Zer. (Eurytomidae) are new in the fauna of our country.
Entomofauna of Centaurea sp. and their economic importance
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1990,
Abstract: The different species of Centaurea are host of numerous insects: among the most important some are pollinating (Apis melifica L.), the most of them are phytophagous (Larinus obtusus...,Agonopterix liturella Den. et Schiff., Chaetorellia jaceae R. D., Crophora quadrifasciata Meig.) and others are zoophagous (Exeristes roborator F. and Zeuxia cinerea Meig.). The plant root is harmed by the larvae of Pelochrista medulana Stgr., the stalk is mined by the caterpillars of Agonopterix liturella Den. et Schiff., and the flowers and seeds are destroyed by the larvae of Larinus obtusus Gyll., Eucosoma hohenwartina Den. et Schiff., E. aemulana Schlang., Chaetorellia jaceae R.D. and Urophora quadrifasciata Meig. Due to the population density and to the caused damages, the species Agonopterix liturella Den. et Schiff., Larinus obtusus Gyll., Chaetorellia jaceae R.D. and Urophora quadrifasciata Meig., are these who present a practical importance as agents of biological control of the knapweed species, especially Centaurea phrygia. On the whole, considering the seed losses caused only by the seed weevil (Larinus obtusus Gyll.) and by tephritids flies of the knapweed seeds (Chaetorellia sp. and Urophora sp.) these are estimated to 50-60 %.
Host plants for seminiferous insects (III). The Umbeliferae family (Apiaceae)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1985,
Abstract: Comprising data registered in the interval 1976-1983, the report introduces 9 species of seminiferous insects on 21 host plants of the Umbeliferae family. From the seeds of these plants , 5 lepidoptera and 4 hymenoptera species were obtained. The species S. tuonella and S. conspicua were not recorded before in the indigenous literature.
Leguminous host-plants for seminiphagous insects (I)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1981,
Abstract: During the period from 1955 till 1980, thirty-eight seminiphagous insects were isolated from seeds of forty-two plant species pertaining to the Leguminosae family. Twenty-five species were Coleoptera (10 Bruchidae, 15 Curculionidae), six were Lepidoptera (Eupiatidae, Tortricidae and Phycitidae) and seven were Hymenoptera (Eurytomidae). Most of the presented species have been well known in the Romanian faunistic literature, and for a wide range of them comments were made on their economic significance. Seminiphagous insects found in some leguminous species sparse or rare in Transilvanian flora may represent a limiting factor for the spreading of the host plants concerned.
Compositae - host plants for phytophagous and zoophagous insects
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1983,
Abstract: Between the years 1975-1982 the authors, an enthomologist and a botanist, studied the phytophagous and zoophagous insects found in inflorescences of Compositae (Asteraceae). 44 host species, beloging to 24 genera were studied, 6122 phytophagous and zoophagous insect specimens were collected from Physanoptera (965), Coleoptera (325), Lepidoptera (155), Hymenoptera (1921) and Diptera (2753). The proportion between the phytophagous and zoophagous insects was about 2:1.
Anapedesis: Implications and Applications of Bio-Structural Robustness
Nicanor I. Moldovan
Quantitative Biology , 2008,
Abstract: Here we develop an approach to bio-structural robustness integrated with structure-function relationship in a unified conceptual and methodological framework, and envision its study using adequate computational and experimental methods. To distinguish this structural robustness from the abstract organizational robustness of systems, we call it anapedesis, and define it as the scale-independent property of biological objects, from biomolecules to organisms, to deform and recover while minimizing and/or repairing the damage produced by stretch. We propose to study the consequences of deformation of biological objects closer to their structural and/or functional failure than previously considered relevant. We show that structural robustness is present as a basic principle in many facets of biomedicine: many pathological conditions may derive from the failure of molecules, cells and their higher-order assemblies to maintain robustness against deformation. Furthermore, structural robustness could have been the key selective criterion during pre-biotic evolution and afterwards, and its universality can be demonstrated by modeling using genetic algorithms. Thus, the specific investigation of bio-structural robustness as anapedesis could help the solving of fundamental problems of biology and medicine.
The agrobotanical garden of the Agronomy Institute "Dr. Petru Groza"
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1979,
Abstract: The paper presents the main orientations in the activities of the Agrobotanical Garden from the Agronomy Institute "Dr. Petru Groza" Cluj-Napoca, founded 75 years ago. The first period of the garden was characterised by increased interest for medicinal plants, the second for plant taxonomy and systematics, the third by ecological orientations, research on cultivated varieties and for germplasm resources. The living plant collection of the garden are presented periodically in the Index Seminum Horti Agrobotanici Cluj - Napoca published since 1962, the results of botanical interest related to research on spontaneous species and cultivated plants are published in Notulae Botanicae Horti Agrobotanici Cluj-Napoca. As a result of the research activities a Herbarium of more than 31 000 cultivated and spontaneous plant specimens are preserved.
Contributions to the study of Cuscuta varieties from Sibiu county
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 1998,
Abstract: contributions to the chorology of these varieties in Sibiu county. There have been pointed out 26 new host plants or some rarely found ones. Out of the 13 (5) or 10 (2) species mentioned in Romania, there have been identified 7 species, 2 subspecies and 5 varieties.

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