scholarly journals DISTRIBUIÇÃO, MORFOLOGIA E ANATOMIA DE MONILÓFITAS (SAMAMBAIAS) AQUÁTICAS DE PEQUENAS LAGOAS NA ÁREA ITAQUI-BACANGA, ILHA DE SÃO LUÍS - MA

2020 ◽  
Vol 30 (2) ◽  
Author(s):  
Ricardo Barbieri ◽  
Lenise Bruna Carvalho Lima ◽  
Maria Marlúcia Ferreira Correia

Foi verificada a distribuição, feita a identificação taxonômica e a caracterização morfológica das espécies de monilófitas (samambaias) aquáticas de quatro lagoas pequenas temporárias e duas perenes localizadas ao longo da estrada que corta o setor industrial da área Itaqui-Bacanga, na ilha de SãoLuís - MA, durante o período de junho a setembro de 2011. As espécies encontradas nos ambientes amostrados foram Salvinia auriculata, Salvinia molesta (Salviniaceae) e Ceratopteris thalictroides (Pteridaceae). As três espécies apresentaram caráter de ocorrência anual e as Salviniaceaeestiveram amplamente distribuídas nos ambientes aquáticos observados. Dentre as monilófitas amostradas, apenas o gênero Salvinia apresenta heterosporia, com a presença de megasporângios e microsporângios. O gênero Ceratopteris, por sua vez, é homosporado, apresentando apenas esporos masculinos, que possuem um potencial para desenvolver gametófitos que futuramente poderão ser masculinos ou hermafroditas. A superfície foliar (tricomas), no caso de Salvinia, e o caule, no caso de Ceratopteris, são importantes estruturas na flutuabilidade das plantas. As três espécies apresentam adaptações morfológicas fundamentais para o seu estabelecimento e desenvolvimento nesses locais.Distribution, morphology and anatomy of aquatic Monilophyta (ferns) in small ponds at the area Itaqui-Bacanga, São Luís Island-MAABSTRACTDistribution, taxonomic identification and morphological analysis of aquatic species of Monilophyta (ferns) were carried out in four perennial and two temporary ponds located along the road through the industrial area Itaqui-Bacanga, at the São Luís Island – MA, from June to September 2011. The species found in the study sites were Salvinia auriculata, Salvinia molesta (Salviniaceae) and Ceratopteris thalictroides (Pteridaceae), all presenting an annual occurrence in nature and Salviniaceae were widely distributed in the ponds observed. Among the monilophytes sampled, only the Salviniagenus shows heterosporia, with the presence of megasporangia and microsporangia. The genus Ceratopteris in turn is homosporate, presenting only male spores, which have a potential to develop gametophytes that in the future may be male or hermaphrodite. The leaf surface (trichomes), in the case of Salvinia, and the stem, in the case of Ceratopteris, are important structures in the buoyancy of plants. The three species show important morphological adaptations for their establishment and development in these places.Keywords: Aquatic euphillophyta; Occurrence; Morphological adaptations; Ponds.

Author(s):  
Raghdaa K. Fayad ◽  
Roda F. Al-Thani ◽  
Fatima A. Al-Naemi ◽  
Mohammed H. Abu-Dieyeh

This research was conducted to investigate the dynamics of airborne fungi using viable culture collection and in respect to different abiotic variables, including seasonal and intra-diurnal variations. A gravimetric method was used to sample airborne fungal deposition on potato dextrose agar plates on alternate days, for a year between April 2015 to March 2016. From 176 settle plate exposures, a total of 1197 mould and 283 yeast colony-forming units (CFU), 21 genera and 62 species were retrieved. The highest fungal spore count was recorded in February 2016, whereas the lowest count occurred in August 2015. The main constituents of the fungal airspora were attributed to Cladosporium (60.2%), Aspergillus (10.4%), Fusarium (9.4%), Alternaria (8.5%), and Ganoderma spp. (2.3%). Temperature was negatively correlated with total colony count (r = −0.231, p ≤ 0.05) or species richness (r = −0.267, p ≤ 0.001), while wind speed was positively correlated with total colony count (r = 0.484, p ≤ 0.001) or species richness (r = 0.257, p ≤ −0.001). The highest dispersal of fungal spores was obtained at 18:00, whereas the lowest fungal spores release was recorded at 00:00 (midnight). There were no significant differences in species composition and richness of the airborne fungal population between two study sites, the Industrial area and Qatar University Campus. The count of Alternaria spp. and Fusarium spp. were significantly higher at the Industrial area site, which corresponds to a higher CO2 level than the Qatar University site. This study lays the foundation for future work to assess the implications of such aeromycological data on public health.


2009 ◽  
Vol 52 (6) ◽  
pp. 1453-1460 ◽  
Author(s):  
Guilherme Bordignon Ceolin ◽  
Jumaida Maria Rosito ◽  
Thais Scotti do Canto-Dorow

The goal of this work was to test if the macro and micro morphological analysis of the leaf surface could provide vegetative diagnostic characters for some of the most common Lauraceae species in Southern Brazilian Seasonal Forests. The leaf printing technique with universal instantaneous adhesive was used for the epidermical microscopical analysis and external macroscospical analyses of leave were made. Microscopic evaluation revealed the visibility and contours of anticlinal walls of epidermical cell and stomata and shape of guard-cells. Macroscopic evaluation showed the absence or presence of characters such as hairiness, domatia and scents. The results showed that analyzed characters, together with other diagnostic characteristics, could contribute in taxonomic delimitation of some common Lauraceae species in the Southern Brazil.


2018 ◽  
Vol 1 (1) ◽  
pp. 55
Author(s):  
Karto Wijaya ◽  
Heru Wibowo

This developing area provides a very wide potential in the development as an area that has excellent products or development projects in Bandung. Cigondewah area has the potential to become this area as a creative industrial area that can support the income of the people and the city of Bandung. Cigondewah is one of the areas known as the Cigondewah environment and surrounding areas as a creative industrial area about the utilization of textile industry waste that sells the rest of cloth from factories around the city of Bandung. The area of Cigondewah grows and develops with the uniqueness of the community itself that will take advantage of opportunities from the textile industry, homes along the road corridor that turns into the shelter, the community into warehouses and shops to sell fabrics.It is also the aim of the government to promote and develop tourist areas Cigondewah for the future to be better again to enhance the identity of the area Cigondewah as a tourist area fabric shopping in the city of Bandung. This study aims to determine the development of creative industries in Cigondewah. Cigondewah Textile Tourism Area of Bandung City, especially Capacity Building, to show the identity and image of Cigondewah area as a textile tourism area in Bandung City. The identity of Cigondewah area which is currently called Cigondewah as Tourism Shopping Area Cloth. From this research is expected to give an idea that the environment is in the corridor Cigondewah road.


2013 ◽  
Vol 13 (2) ◽  
pp. 192-202
Author(s):  
M Indar Pramudi ◽  
Retno Dyah Puspitarini ◽  
Bambang Tri Rahardjo

Diversity and phylogeny of fruit fly (Diptera: Tephritidae) in South Kalimantan based on morphology and molecular (RAPD-PCR and DNA sequencing). Seven species of fruit fly was known by morphological identification. The fruit flies were found from  trapping with methyl eugenol and fruit collecting at all study sites in South Kalimantan. The results showed that as much as 17  plants were infected by fruit fly. Dendrogram based on morphological identification analyzed by using UPGMA with MEGA 4 program consisted in a group consisting of 5 sub-groups. Bactrocera carambolae and Bactrocera papayae of morphology were still a closely related fruit fly at 0.935. Whereas, based on RAPD result analized by UPGMA using 20 character of DNA based, showed that out of seven species consisted 2 groups, 1st group were B. umbrosa,  B. occipitalis and sub-group of B. latifrons. The second group consists of sub-groups B.carambolae, B. papaya, sub-group B. albistrigata and B. cucurbitae. The results of dendrogram from sequencing DNA fruit fly analysis comprised one of group and three sub-groups. The first sub-groups were B. papayae, B. carambolae, B. occipitalis, B.latifrons. The second subgroup were B. cucurbitae and B. umbrosa. While B. albistrigata separate but still one group with another fruit flies. The results of DNA sequencing showed that there were a homology of the seven species of the fruit fly i.e at 83 base pair / bp (C), 101 bp (T), 265 bp (G), 420 bp (A), 432 bp (T), 600 bp (A ). The length of the base pair for B. occipitalis, B. cucurbitae, B. albistrigata, B. carambolae, B. papayae, B. latifrons were respectively 615, 898, 570.969, 898 and 615 bp. The results of morphological analysis and RAPD methods showed difference in the distribution of groups and sub-groups. But based on morphologycal and DNA identification seven species of fruit flies found were all same as the genebank.


2021 ◽  
Vol 25 (7) ◽  
pp. 1221-1229
Author(s):  
M.P. Wanjala ◽  
L. Odokuma ◽  
I. Etela ◽  
R. Ramkat ◽  
B.A. Odogwu ◽  
...  

Intensified urbanization and industrialization are rapidly triggering the release of pollutants to the environment. This study determined the extent of soil contamination with Nickel (Ni) in oil mining areas and its effect on the levels of Ni tolerance by fungi and bacteria. The total CFUs/g of soil were enumerated after a culture period of 7 days at 28°C and LC50 was determined using probit and regression analysis. The mean values of Ni were 1.38±0.23 in industrial area, 1.41±0.36 ppm in agricultural area and 1.02±0.64 in urban area. The mean values of Total Petroleum Hydrocarbon (TPH) were 4,405.46 ppm in industrial area, 55.65 ppm in agricultural area and 1,304.53 ppm in urban area. Nickel’s peak concentration indicating growth of both fungi and bacteria at 150 ppm. There was significant difference (p ≤ 0.000) in the mean levels of LC50 for fungi among the study sites. There was no significant correlation between the concentration of TPH in soil and LC50 of fungi (r = -0.169) and bacteria (r = 0.042). In conclusion, TPH influenced the levels of fungi and bacteria tolerance to Ni in soils. Moreover, it was observed that LC50 can be a reliable method for monitoring chemically resistant microorganisms directly in the environment to improve the use of microorganisms for the bioremediation of oil contaminated soils and in monitoring of antibiotic resistant microorganisms in natural ecosystems.


Author(s):  
Vasu Choube

we know that as the increment in population is directly connected to increment in vehicles. And if number of vehicles increase number of accidents is also increased. The reason of accidents are road parameters or human error. We find out from the previews analysis of data that 66% accidents are occur due to human errors and 33% due to the parameters of road. We have 3.3 million km network in India which consist all types of road just like National Highway (NH), State Highway (SH),, Major District Road (MDR) and other District Road (ODR). The Road safety is major important considarable thing in present time because accident cases goes very high in past some years. So the identification of the some sites that called black spots are important for the better road safety policies. So in this thesis we taking a route of a district khargone and find out the black spots, accidents cases, reason of accident cases and after the all calculations we also give the suggestion for the improvement of road. Mandleshwar is a town and Nagar panchayat in the Khargone district of the India state of Madhya Pradesh. It is on the banks of Narmada River 8 kilometres (5.0 mi) east of Maheshwar and 99 kilometres (62 mi) south of Indore. It is a "Pavitra Nagri" as termed by the government of Madhya Pradesh, as it is an ancient town. It is the education centre of Maheshwar block, the location of the district court and district jail of Khargone, and is also the political centre of Maheshwar block In mandleshwar city district Khargone roads has major connectivity and there are not big industries but these road carries large numbers of passengers to industrial area of Indore,and other state Gujarat ,Maharashtra ,Rajasthan through state highways and district road. Mandleshwar is also connected to other state highways just like: Mandleshwar to barwaha( SH 38) 41.4 km Mandleshwar to Mhow (SH 1) 56.2 km Mandleshwar to Dhamnod (SH 38) 21.4 km Mandleshwar to Khargone (SH 1) 47.0 km This paper presents an analysis of accidents on small portion state highway city mandleshwar to connect the other cities.The data for analysis is collected for the period of 2015 to 2019.


2003 ◽  
Vol 46 (2) ◽  
pp. 253-258 ◽  
Author(s):  
Maria Izildinha Ferreira ◽  
Geraldo Stachetti Rodrigues ◽  
Marisa Domingos ◽  
Paulo Hilário do N. Saldiva

The Tradescantia stamen hair mutation assay (Trad-SHM) was employed for assessing the environmental mutagenesis in two areas of São Paulo City. The study sites were defined as follows: 1) Celso Garcia Avenue, an industrial area on the outskirts of the urban center (Belém neighborhood), with an average daily traffic volume of 8,750 vehicles; 2) Doutor Arnaldo Avenue, in downtown area (Pinheiros neighborhood), with a mostly residential and business offices occupation, with an average daily traffic volume of 46,125 vehicles. The negative control (background) site is located in the city of Jaguariúna, 138 km from São Paulo, in an area of low atmospheric pollution. The mutation frequency observed for Belém was similar to the background for clone 4430, whereas plants exposed in Pinheiros showed significant increases in mutation rate. Positive correlation was observed between mutation frequency and the levels of particulate matter in the atmosphere. This indicated a relationship between mutation frequency and the amount of atmospheric pollution present at the exposure sites in São Paulo City, with special reference to vehicular emissions.


2018 ◽  
Vol 181 ◽  
pp. 06004
Author(s):  
S. Waloejo Budi ◽  
Dadang Meru Utomo ◽  
Salsabila W Ninditarari

The area in Surabaya and Mojokerto is an industrial area that is increasing quite rapidly. Based on City Mojokerto in Figures Year 2016. From an industrial estate is a change of land use from agriculture or ponds into settlements and / or industries. The occurrence of congestion along this road because of the capacity that is not sufficient to accommodate the number of vehicles passing. The purpose of this research is to know the model of land use interaction, knowing the network performance and know the travel time to be passed. And analyze what components affect the calculation of travel time. Necessary data. The existing land layout along the road and the average traffic calculation data on the road in the study area. To know the travel time must be known in advance the capacity of the road that can be accommodated along the road. After the capacity is known the service performance becomes the main factor in determining road network performance. This research uses regression analysis for land use modeling.


Author(s):  
Zaira Negrín ◽  
José Ramón Arévalo

Urbanization is one of the main causes of species extinction. Closely linked to urbanization are road systems, which are a source of biotic and abiotic effects on the surrounding landscape. The continued existence of these corridors results in enormous human activity (Forman & Alexander, 1998). In particular, roads sharply define and fragment forest ecosystems leading to changes in plant species composition and vegetation structure from road border to the surrounding interior. This paper assesses border effects on tree species richness and composition in the laurel forest of Anaga, Tenerife, Spain. Effects of anthropogenic corridors on vegetation differed among the study sites. Multivariate analysis revealed that species composition is more related to the sampling site than to the effect of the corridor, while for density, significant differences were found between the road border and forest interior but not as a regular pattern. This suggests that main corridor disturbances regarding tree basal area is limited to the immediate road edge in the laurel forest, while for species composition, no significant differences were found.


2015 ◽  
Vol 15 (3) ◽  
pp. 687-701 ◽  
Author(s):  
H. Alaeddine ◽  
K. Serrhini ◽  
M. Maizia ◽  
E. Néron

Abstract. Managing the crisis caused by natural disasters, and especially by floods, requires the development of effective evacuation systems. An effective evacuation system must take into account certain constraints, including those related to traffic network, accessibility, human resources and material equipment (vehicles, collecting points, etc.). The main objective of this work is to provide assistance to technical services and rescue forces in terms of accessibility by offering itineraries relating to rescue and evacuation of people and property. We consider in this paper the evacuation of an urban area of medium size exposed to the hazard of flood. In case of inundation, most people will be evacuated using their own vehicles. Two evacuation types are addressed in this paper: (1) a preventive evacuation based on a flood forecasting system and (2) an evacuation during the disaster based on flooding scenarios. The two study sites on which the developed evacuation model is applied are the Tours valley (Fr, 37), which is protected by a set of dikes (preventive evacuation), and the Gien valley (Fr, 45), which benefits from a low rate of flooding (evacuation before and during the disaster). Our goal is to construct, for each of these two sites, a chronological evacuation plan, i.e., computing for each individual the departure date and the path to reach the assembly point (also called shelter) according to a priority list established for this purpose. The evacuation plan must avoid the congestion on the road network. Here we present a spatiotemporal optimization model (STOM) dedicated to the evacuation of the population exposed to natural disasters and more specifically to flood risk.


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