Genome-wide diversity in native populations of Croton grewioides Baill., a future crop with fungicidal and antioxidant activity,using SNP markers     

Oliveira  S. D. S.  Gois  I. B.  Blank  A. F.  Arrigoni-Blank  M. F.  Zucchi  M. I.  Pinheiro  J. B.  Batista  C. E.  Alves-Pereira  A. 《Genetic Resources and Crop Evolution》2022,69(5):1965-1978

Genetic Resources and Crop Evolution - Croton grewioides Baill. is a medicinal and aromatic species with proven biological activity. Considering the economic potential of the species, the use of...  相似文献   

Trans-10, cis-12 conjugated linoleic acid reduces neutral lipid content and may affect cryotolerance of in vitro-produced crossbred bovine embryos     

Ribrio Ivan Tavares Pereira Batista  Nádia Rezende Barbosa Raposo  Paulo Henrique Almeida Campos-Junior  Michele Munk Pereira  Luiz Sergio Almeida Camargo  Bruno Campos Carvalho  Marco Antonio Sundfeld Gama  Jo?o Henrique Moreira Viana 《畜牧与生物技术杂志(英文版)》2014,5(1):33

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From pattern to process: estimating expansion rates of a forest tree species in a protected palm savanna     

Andrés G. Rolhauser  William B. Batista 《Landscape Ecology》2014,29(5):919-931

We assessed the possible influences of dominant tree density (Butia yatay palm trees) and fire on the expansion of a riparian tree population (Myrcianthes cisplatensis) over El Palmar National Park, a protected savanna in Argentina. Our approach is based on Skellam’s model of population expansion, which predicts that populations with density-independent reproduction and random dispersal will exhibit Gaussian-shaped expansion fronts. Using Poisson regression, we fitted Gaussian curves to Myrcianthes density data collected at varying distances from a riparian forest, within four environmental conditions resulting from combinations of palm density (dense and sparse) and fire history (burned and unburned). Based on the estimated parameters, we derived statistics appropriate to compare attained expansion velocity, mean squared effective dispersal distance, and density-independent population growth among environmental conditions. We also analyzed the effects of palm density, fire history, and distance from the riparian forest on local maximum size of Myrcianthes individuals. Gaussian curves fitted the data reasonably well and slightly better than two alternative front models. Palm density and fire history interacted to control Myrcianthes spread, making unburned dense palm savannas the preferential avenue for Myrcianthes population expansion across the landscape. Limitation of Myrcianthes expansion by fire appeared to result from low survival of small individuals to fire, whereas facilitation of Myrcianthes expansion by palm trees may have resulted from increased population growth. Our results stress the interactive role of fire regime and local biotic influences in determining propagule pressure and tree establishment at the forefront, and the overall vulnerability of savannas to colonization by forest species.  相似文献   

Medical and Surgical Management of a Dystocia Because of Foetopelvic Disproportion in an African Lioness (Panthera Leo)     

M Batista‐Arteaga  M Santana  O Lozano  J Méndez  O Quesada  M Arbelo  J Espinosa 《Reproduction in domestic animals》2011,46(2):362-365

Medical and surgical management of a foetopelvic dystocia in an African lioness (Panthera leo) and the post‐operative complications are reported. A caesarean section was performed to extract an oversize foetus blocked at the cervical canal; the lioness died 36 h after surgery. At necropsy, an abdominal effusion with sero‐haemorrhagic fluid was observed, along with a fibrinopurulent exudate adhered to the serosal surfaces of the pelvic and abdominal cavities. In addition, the pelvic symphysis was not cartilaginous, but formed a firm and rigid joint between the pubis and ischium of each hip. The macroscopic and microscopic findings confirmed the presence of metritis, vaginitis and peritonitis. Dystocia may be caused by the premature ossification of the pelvic symphysis, reducing the dimensions of the pelvic cavity.  相似文献   

Potential fungal inhibition by immobilized hydrolytic enzymes from Trichoderma asperellum     

Silva BD  Ulhoa CJ  Batista KA  Yamashita F  Fernandes KF 《Journal of agricultural and food chemistry》2011,59(15):8148-8154

The use of cell wall degrading enzymes from Trichoderma asperellum immobilized on biodegradable support is an alternative for food packaging. In this study, hydrolytic enzymes produced by T. asperellum were tested as a fungal growth inhibitor, in free form or immobilized on a biodegradable film composed of cassava starch and poly(butylene adipate-co-terephtalate) (PBAT). The inhibitory activity was tested against Aspergillus niger , Penicillium sp., and Sclerotinia sclerotiorum , microorganisms that frequently degrade food packaging. The use of chitin as carbon source in liquid medium induced T. asperellun to produce N-acetylglucosaminidase, β-1,3-glucanase, chitinase, and protease. The presence of T. asperellun cell wall degradating enzymes (T-CWD) immobilized by adsorption or covalent attachment resulted in effective inhibition of fungal growth. The enzymatic activity of T-CWD was stronger on S. sclerotiorum than on the Aspergillus or Penicillum isolates tested. These results suggest that T-CWD can be used in a free or immobilized form to suppress fungi that degrade food packaging.  相似文献   

Low diversity in the native populations of Croton tetradenius Baill. when using SNP markers: a future crop with an insecticidal activity     

Brito  Fabiany de Andrade  Zucchi  Maria Imaculada  Pinheiro  José Baldin  Arrigoni-Blank  Maria de Fátima  Dequigiovanni  Gabriel  Grando  Carolina  Batista  Carlos Eduardo  Alves-Pereira  Alessandro  Blank  Arie Fitzgerald 《Genetic Resources and Crop Evolution》2021,68(8):3145-3159

Genetic Resources and Crop Evolution - Croton tetradenius Baill. is an aromatic plant species whose essential oils have high economic importance. Its incorporation into Active Germplasm Banks is...  相似文献   

Micronutrient Contents of a Revegetated Saprolite Exposed by Excavation of an Oxisol     

Carolina dos Santos Batista Bonini  Rosane da Silva Días  Marlene Cristina Alves  Cleide Aparecida de Abreu  Eva Vidal Vázquez 《Communications in Soil Science and Plant Analysis》2015,46(4):283-295

Soils of the Brazilian Cerrado biome have been found to be deficient in copper (Cu) and zinc (Zn). In this area, an Oxisol was deeply excavated in 1962 during the construction of a hydroelectrical plant, and the exposed saprolite material was abandoned, without any reclamation measures. The abandoned land was a harsh environment for plant growth, and the secondary vegetation has not recovered. A field trial was established in 1992 to assess the effects of different grass species and lime amendments on soil reclamation at the degraded site. In 2011 soil samples were collected at three depths (0–10, 10–20, and 20–40 cm) from vegetated and bare plots over tilled saprolite, from an untreated area of the saprolite, and from an Oxisol under native forest, used as external reference. Nineteen years after the reclamation effort was begun, the organic carbon (OC) content of the restored saprolite still was much lower than that of the Oxisol under natural vegetation. The undisturbed Oxisol was deficient in extractable Cu (0.16–0.10 mg kg^?1) and Zn (0.10–0.02 mg kg^?1) and exhibited rather low concentrations of extractable iron (Fe; 5.24–1.47 mg kg^?1) and manganese (Mn; 3.21–0.77 mg kg^?1). However, the saprolite under reclamation showed even lower levels of these elements compared to the native forest soil. In the natural soil, OC, N, extractable Fe, Mn, and Cu showed stratification, but this was not the case for extractable Zn. Although the reclaimed saprolite still was far from predisturbance conditions, the revegetation treatments promoted recovery of OC, N, Fe, Mn, and Cu at the surface layers, which resulted in incipient stratification. Extractable Fe, Mn, and Cu were correlated to OC, whereas no association between Zn and OC was detected. Our results also suggest that reclamation of the excavated saprolite may be constrained by micronutrient deficiencies and mostly by the extremely low levels of Zn and Cu.  相似文献   

Nodulation competitiveness as a requisite for improved rhizobial inoculants of Trifolium pratense     

Leticia Batista  Pilar Irisarri  Mónica Rebuffo  María José Cuitiño  Juan Sanjuán  Jorge Monza 《Biology and Fertility of Soils》2015,51(1):11-20

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Influence of Cool Storage before Freezing on the Quality of Frozen–Thawed Semen Samples in Dogs     

M Santana  M Batista  D Alamo  F González  T Niño  F Cabrera  A Gracia 《Reproduction in domestic animals》2013,48(1):165-170

The aim of this study was to determinate the semen quality of frozen–thawed samples that were chilled for up to 2 days before freezing. The ejaculates (n = 18) from six dogs were collected, pooled and divided into six aliquots. The first aliquot (C, control) was frozen in liquid nitrogen using a conventional protocol to reach a final concentration of 100 × 10⁶ spermatozoa/ml, 20% egg yolk and 5% glycerol. The remaining five aliquots were diluted with a chilled extender (Tris‐glucose and 20% egg yolk) and cooled at 4°C as follows: R1, the semen was cooled for 1 h; R6, the semen was cooled for 6 h; R12, the semen was cooled for 12 h; R24, the semen was cooled for 24 h and R48, the semen was cooled for 48 h. After the chilling period, a second extender was added (Tris‐glucose, 20% egg yolk, 10% glycerol and Equex at 1%) to reach a final composition similar to aliquot C, and then, the semen samples (R1, R6, R12, R24 and R48) were frozen in liquid nitrogen. The post‐thaw sperm quality was assessed in 30 straws from each experimental group. After freezing–thawing, the total sperm motility (approximately 60–70%) in the semen chilled for up to 48 h did not show any differences from the samples frozen by the conventional cryopreservation method (63.2%). No significant differences were detected in the percentages of abnormal sperm cells among the fresh semen, the control group and the frozen samples after the different cooling times. Finally, the post‐thaw percentages of damaged acrosomes showed a very uniform distribution, with mean values ranging between 7% and 10.5%. The results clearly demonstrated that cooling the semen up to 48 h before freezing did not produce a decrease in the semen quality when was compared with semen frozen by a traditional procedure.  相似文献   

Biological Activities of Ethanolic Extracts from Deep-Sea Antarctic Marine Sponges     

Tom Turk  Jerneja Ambro?i? Avgu?tin  Ur?ka Batista  Ga?per Strugar  Rok Kosmina  Sandra ?ivovi?  Dorte Janussen  Silke Kauferstein  Dietrich Mebs  Kristina Sep?i? 《Marine drugs》2013,11(4):1126-1139

We report on the screening of ethanolic extracts from 33 deep-sea Antarctic marine sponges for different biological activities. We monitored hemolysis, inhibition of acetylcholinesterase, cytotoxicity towards normal and transformed cells and growth inhibition of laboratory, commensal and clinically and ecologically relevant bacteria. The most prominent activities were associated with the extracts from sponges belonging to the genus Latrunculia, which show all of these activities. While most of these activities are associated to already known secondary metabolites, the extremely strong acetylcholinesterase inhibitory potential appears to be related to a compound unknown to date. Extracts from Tetilla leptoderma, Bathydorus cf. spinosus, Xestospongia sp., Rossella sp., Rossella cf. racovitzae and Halichondria osculum were hemolytic, with the last two also showing moderate cytotoxic potential. The antibacterial tests showed significantly greater activities of the extracts of these Antarctic sponges towards ecologically relevant bacteria from sea water and from Arctic ice. This indicates their ecological relevance for inhibition of bacterial microfouling.  相似文献