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Open access

Adrian Ruicănescu, Gabriela Cuzepan Bebeșelea and Andreea-Cătălina Drăghici

Abstract

One specimen of Anthaxia (Anthaxia) suzannae Théry, 1942 was collected on a meadow, near Cluj-Napoca, Romania. Although this species is widely distributed in Europe, this is the first record of its presence in Romania. A short description of the species, and some considerations about the biology and zoogeography are given.

Open access

O. Varga

Abstract

A list of the Ukrainian Carpathian species of the tribe Delomeristini is reviewed. All ten recorded species are new for the studied region. The genus Atractogaster Kriechbaumer, 1872 with a single European species, A. semisculptus Kriechbaumer, 1872, Delomerista borealis Walkley, 1960, D. novita (Cresson, 1870), D. pfankuchi Brauns, 1905, and Perithous speculator Haupt, 1954 are recorded for Ukraine for the first time. Diagnostic features and illustrations of some species, seasonal dynamics and high-altitude zone distribution in the Ukrainian Carpathians are provided.

Open access

V. F. Lima, S. V. Brito, J. A. Araujo Filho, D. A. Teles, S. C. Ribeiro, A. A. M. Teixeira, A. M. A. Pereira and W. O. Almeida

Summary

We tested the role of sex, size, and mass of the lizards Phyllopezus pollicaris, Gymnodactylus geckoides, Hemidactylus agrius, Lygodactylus klugei, and Hemidactylus brasilianus on the rates of pentastomid infection in the Brazilian Caatinga. We collected 355 individuals of these five species, of which four (prevalence of infection: P. pollicaris 15.9 %, G. geckoides 1.4 %, H. agrius 28.57 %, and H. brasilianus 4.16 %) were infected by Raillietiella mottae. Parasite abundance was influenced by host body size and mass only in P. pollicaris. Host sex did not influence the abundance of parasites in any species. Hemidactylus agrius, G. geckoides, and H. brasilianus are three new host records for pentastomids.

Open access

R. A. Aragón-Pech, H. A. Ruiz-Piña, R. I. Rodríguez-Vivas, A. D. Cuxim-Koyoc and E. Reyes-Novelo

Summary

Virginia opossum, Didelphis virginiana, is a synanthropic mammal associated with peridomestic areas of Yucatán, However, little is known about the gastrointestinal parasite infections of this species. The infection prevalence, mean abundance and mean intensity of eggs and oocysts of gastrointestinal parasites, in opossums captured in the peridomestic areas were estimated in six rural localities of Yucatán, Mexico. Eighty-four faecal samples were processed by flotation technique. McMaster test was used to estimate the number of helminth eggs and protozoa oocysts per gram of feces. Seven genera of gastrointestinal parasites were identified, and then infection prevalence was estimated as follows: Protozoa Eimeria sp. (51.9 %) and Sarcocystis sp. (1 %); nematodes Ancylostoma sp. (80.56 %), Cruzia sp. (62.04 %), Trichuris sp. (60.19 %), Capillaria sp. (29.63 %), Turgida sp. (23.15 %), Toxocara sp. (11.11 %), and Ascaris sp. (1.85 %); and one acanthocephalan: Oligacanthorhynchus sp. (14.81 %). This is the first study on the diversity of gastrointestinal parasites in Virginia opossums, and first evidence about the potential role of opossums in the transmission of zoonotic gastrointestinal parasites in peridomestic areas of Yucatán, Mexico.

Open access

Aleksandra Wójcik and Adam Krajewski

Abstract

Experiments were undertaken in connection with the need, indicated in the literature, for the proper choice of a substance enhancing the effect of a low oxygen atmosphere used as a means of controlling wood boring insects in museum collections and historical objects. A low oxygen atmosphere itself causes the death of wood boring insects after a relatively long period of application. Thus, attempts were made to use p-dichlorobenzene to accelerate the effects of a low oxygen atmosphere in the control of wood boring insects. The experiments were performed as a continuation of preliminary research on the effect of p-dichlorobenzene on Anobiidae in an aerobic atmosphere. The paper present the results of gassing Anobium punctatum and Ptilinus pectinicornis (Coleoptera: Anobiidae) larvae with 1,4-dichlorobenzene in a low oxygen atmosphere of nitrogen and argon. The experiments were performed in laboratory conditions at a temperature of 20°C on larvae extracted from wood. The results do not show a faster elimination of larvae of either species using p-dichlorobenzene in a low oxygen atmosphere as compared to using p-dichlorobenzene in an aerobic atmosphere. Complete eradication of larvae in the test groups was obtained after 48 hours when using p-dichlorobenzene in nitrogen. The results obtained when using p-dichlorobenzene in argon appear to be worse at fumigation times shorter than 48 hours.

Open access

Vania Lanari, Oriana Silvestroni, Alberto Palliotti and Paolo Sabbatini

Abstract

The complex relationship between water and grapevine has been examined in several studies. The aim of this study was to understand the impact of water stress on photosynthesis, carbon-13 discrimination in leaves in different positions on the shoot, and the capacity of vines to recover from different levels of water stress intensity. The vine physiological responses to a water stress regimen followed by re-watering for two consecutive cycles was evaluated using potted ‘Sangiovese’ grapevines. The intensity and the duration of the water limitation affected the emergence and development of new leaves, but did not significantly affect leaf water potential. Leaf stomatal conductance and carbon assimilation during the first water-stress phase were reduced respectively by about 61% and 20%, while after the second water stress cycle both were lower than the initial values by 77% and 21%, respectively. After 1 day of re-watering, only the leaves located in the medial positions on the shoot showed a partial recovery of photosynthesis. After at least 2 days post-re-watering, the leaves located in the distal portion of the shoot showed a recovery of photosynthetic capacity. The results indicated that leaf position along the shoot, i.e., an indicator of leaf age, is an important variable in developing grapevine strategies in response to conditions of limited water availability.

Open access

C. Kurt and H. Arioglu

Abstract

Peanut is one of the most important oil crops in Turkey and grown mainly in Adana, Osmaniye and Aydın provinces. Five peanut cultivars (NC-V11, Halisbey, Arioglu 2003, Sultan and Osmaniye 2005), mostly grown in Turkey, were analyzed for the physical and mechanical characteristics of pods to select the most promising candidate. The average length, width, thickness, the geometric mean diameter, sphericity index and rupture force were studied. The results indicated that all the studied traits were varied significant among the varieties. Thus, a significant extent of genetic diversity was observed among the peanut cultivars under study. Shelling percentage values were varied between 65.7 - 71.6%. The highest shelling percentage was obtained at NC-V11 variety, while the lowest value was obtained at Sultan. The variety NC-V11, Halisbey, Arioglu 2003, Sultan and Osmaniye 2005 showed the average lengths of 42.27, 44.68, 46.17, 49.39 and 44.57 mm; width of 16.00, 17.90, 17.57, 17.45, and 17.92 mm; thickness of 17.33; 18.68; 18.54, 18.42, and 19.10 mm, respectively. Rupture force and stiffness values of peanuts depend on the cultivars and varied from 191.06 to 253.19 N and 129715.61 to 184954.67 N/m as higher and lower values, respectively. The varieties Arioglu 2003, Halisbey and Sultan have lower rupture force and stiffness values. On the other hand, NC-V-11 and Osmaniye-2005 varieties have higher value of rupture force and stiffness. These findings indicated that these two varieties need to more energy for hull rupture. But, in the same time, it played an important role for storage. The NC-V-11 variety achieved the highest values of rupture force than others. Some varieties had thick and strong hull, while some other had thin and weak.

Open access

Volkan Okatan

Abstract

Turkey is one of the most important centres of mulberry genetic resources and mulberries grow naturally almost everywhere in Turkey. This study was carried out to determine the most important phenolic compounds and phytochemical properties of mulberry (Morus nigra L.) genotypes collected from natural resources in 2016-2017 in the province of Uşak (Turkey). The investigated biochemical characteristics included: total soluble solids content (TSS), pH, titratable acidity, total phenolic content, vitamin C and antioxidant capacity (DPPH). The highest values of phenolic compounds, i.e. ellagic acid, rutin, quercetin, gallic acid, catechin, chlorogenic acid and caffeic acid, were as follows: 5.89, 133.60, 11.25, 40.90, 10.54, 97.59 and 21.93 g 100 g−1, respectively. The highest values of total phenolics, vitamin C content and antioxidant capacity determined in the investigated mulberry genotypes were 2977.30 mg GAE g−1, 31.34 mg 100 g−1 and 26.80%, respectively. The genotypes 64USA08, 64USA06 and 64USA10 can be recommended in terms of the most valuable chemical composition and used for future breeding purposes. It is desirable to take steps to implement an intensive programme for the preservation of Morus nigra L. biodiversity in Turkey.

Open access

Davood Hashemabadi, Fatemeh Sabzevari, Behzad Kaviani and Mohammad Hossein Ansari

Abstract

The aim of the study was to replace mineral fertilizers with organic and biological fertilizers to improve nutrient uptake, plant growth and the concentrations of some important secondary metabolites in periwinkle (Catharanthus roseus L.). Periwinkle plants were grown under different rates of N supply (0, 20 and 40 mg kg-1 soil) and biological treatments (Azospirillum, Azotobacter, Azospirillum plus Azotobacter, Azospirillum plus fungal compost, Azotobacter plus fungal compost, and fungal compost). The concentrations of pigments and nutrients were measured by spectrophotometry and flame photometry. Secondary metabolites were analyzed by high-performance liquid chromatography (HPLC). Data were recorded for plant growth and development parameters, nutrient uptake and some secondary metabolites of periwinkle plants. The results showed that the N-fertilizer and biological treatments significantly improved most growth attributes and nutrient uptake and increased the concentrations of secondary metabolites as compared to the control. Maximum concentrations of root ajmalicine (0.54 mg g-1 DW), leaf vinblastine (0.96 mg g-1 DW) and root catharanthine (2.38 mg g-1 DW) were obtained from the treatment with Azospirillum under N-fertilizer at 20 and 40 mg kg-1 soil. Azotobacter along with fungal compost under N-fertilizer at 40 mg kg-1 soil induced the maximum concentration of leaf vindoline (1.94 mg g-1 DW). The highest concentration of root alkaloids (1.11 mg g-1 DW) was obtained from the treatment with compost under 40 mg N kg-1 soil. Azospirillum, Azotobacter and fungal compost combined with the N-fertilizer improved many morphological and nutrient characteristics. In conclusion, the growth and metabolism of C. roseus were significantly positively affected by the organic and biological fertilizers.

Open access

Victor Surugiu

Abstract

An isolated, but persistent population of the European medicinal leech Hirudo medicinalis Linnaeus, 1758 is reported from the “Mestecănișul de la Reci” Natural Reserve (ROSCI0111, Covasna County), representing the first confirmed record of this species in Romania. Information regarding habitat characteristics, main diagnostic features and protection status of the species is presented.