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A system to map the risk of infection by Puccinia kuehnii in Brazil Agronomy
Sumida, Ciro Hideki; Fantin, Lucas Henrique; Gonçalves, Ricardo Marcelo; Canteri, Marcelo Giovanetti; Araujo, Kelly Lana; Giglioti, Éder Antônio.
 Orange rust caused by the fungus Puccinia kuehnii greatly affects sugarcane and causes millions of tons of losses in production. This condition was first reported in Brazil at the end of 2009. The disease is currently present in most of the countries that produce this crop. The aim of this research was to develop risk maps of P. kuehnii infection using temperature and relative humidity data, provided by 389 automatic weather stations throughout the country. A spatial distribution analysis was carried out to assess the number of daily hours of favorable conditions for spore germination in each region. In the central-south region, where the main sugarcane producing states are concentrated, two distinct periods were observed during the three years studied....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Orange rust; Sugarcane; Epidemiology; Prediction.; Fitopatologia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39905
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A system to map the risk of infection by Puccinia kuehnii in Brazil Agronomy
Sumida, Ciro Hideki; Fantin, Lucas Henrique; Gonçalves, Ricardo Marcelo; Canteri, Marcelo Giovanetti; Araujo, Kelly Lana; Giglioti, Éder Antônio.
 Orange rust caused by the fungus Puccinia kuehnii greatly affects sugarcane and causes millions of tons of losses in production. This condition was first reported in Brazil at the end of 2009. The disease is currently present in most of the countries that produce this crop. The aim of this research was to develop risk maps of P. kuehnii infection using temperature and relative humidity data, provided by 389 automatic weather stations throughout the country. A spatial distribution analysis was carried out to assess the number of daily hours of favorable conditions for spore germination in each region. In the central-south region, where the main sugarcane producing states are concentrated, two distinct periods were observed during the three years studied....
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.02.00-1 orange rust; Sugarcane; Epidemiology; Prediction. Fitopatologia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39905
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Nutrient intake, productive performance and body measurements of dairy heifers fed with different sources of protein - doi: 10.4025/actascianimsci.v35i3.18749 Animal Sciences
Mota, Diego Azevedo; Universidade Federal do Oeste do Pará; Berchielli, Telma Teresinha; Universidade Estadual Paulista; Canesim, Roberta Carrilho; Universidade Estadual Paulista; Rosa, Bruna Laurindo; Universidade Estadual Paulista; Ribeiro, Andressa Fereirra; Universidade Estadual Paulista; Brandt Filho, Heitor Violin; Universidade Estadual Paulista.
This study evaluated the effect of different protein sources (soybean meal, cottonseed meal, peanut meal and sunflower meal) on dry matter and nutrient intake, productive performance and body measurements of dairy heifers, Holstein x Zebu, recreated in confinement. The experiment consisted in a randomized complete block design made up by 6 replications and 4 treatments. The mean values of ingestion of ether extract (EEI, kg day-1) were statistically different (p < 0.05). The neutral detergent fiber intake (NDFI, %BW) also presented differences (p < 0.05), with higher values in the diet containing sunflower meal (1.01% BW) in relation to the diet with soybean meal (0.84% BW). The average daily weight gain using the diet with soybean meal was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body measurement; Daily gain; Protein concentrate; Sugarcane.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18749
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Estimation of fecal production, digesta flow and digestibility in dairy heifers with different indicator - doi: 10.4025/actascianimsci.v35i2.17338 Animal Sciences
Mota, Diego Azevedo; Universidade Federal do Oeste do Pará; Berchielli, Telma Teresinha; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Canesin, Roberta Carrilho; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Sader, Ana Paula de Oliveira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Mesana, Juliana Duarte; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Biehl, Marcos Vinicius; Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo.
This study evaluated fecal excretion by means of the internal indicator indigestible neutral detergent fiber (iNDF) and external indicators such as chromium complexed with ethylenediaminetetraacetic acid (Cr-EDTA) and ytterbium chloride (YbCl3), in addition to estimating the duodenal flow of dry matter and the total, ruminal and post-ruminal apparent digestibility coefficients. Eight crossbred Holstein x Zebu heifers were distributed into a 4 x 4 Latin square. Indicators Cr-EDTA, YbCl3 and iNDF did not efficiently estimate the fecal production (p < 0.05), with results of 1.64, 1.71 and 2.71 kg day-1, respectively, compared with the total feces collection, which resulted in 1.39 kg day-1. The estimated values of dry matter flow, both for the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.00.00-2; 5.04.03.00-1 Cr-EDTA; Indigestible fiber; Sugarcane; Ytterbium chloride.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/17338
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Operations scheduling of sugarcane production using fuzzy GERT method (part II: preserve operations, harvesting and ratooning) CIGR Journal
Monjezi, Nasim; Sheikhdavoodi, Mohammad Javad; Zakidizaji, Hasan; Marzban, Afshin; Shomeili, Mahmood.
This paper presents a GERT method based on fuzzy theory for solving fuzzy project scheduling of sugarcane production (preserve operations, harvesting and rationing) in Khuzestan province of Iran. In this method, activity duration time and loops, repetition number, and output activities from nodes of network belong to a fuzzy set. First, an analytical approach was proposed to simplify the structure of network. Then, GERT network computations were done based on evaluating nodes. Process outputs were scheduled network and project fuzzy completion time. These outputs were fuzzy numbers and can be analyzed by α- cut. Results prove that the method of using fuzzy numbers and fuzzy relation in project scheduling is a powerful tool to estimate time for agricultural...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scheduling; Sugarcane; GERT; Fuzzy.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3543
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Design a capacitive sensor for rapid monitoring of seed rate of sugarcane planter CIGR Journal
Taghinezhad, Javad; Alimardani, Reza; Jafary, Ali.
A capacitive sensor method for measuring billet spacing uniformity with sugarcane (Saccharum officinarm L.) billet planter is investigated in this paper.  Therefore, an electronic device based on capacitive sensor was designed and developed to predict the planting spacing of sugarcane billets.  It consisted of four components: a rectangular parallel plate capacitor, electronic circuitry, microcontroller, and display unit.  Accordingly, a prototype of the precision metering device for sugarcane billets was developed.  After calibrating the monitoring system, the results were verified with calibrated curve by means of linear regression and paired T-test.  The performance of the device, including quality of feed index (QFI), multiple index and miss index was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capacitive system; Sugarcane; Compare monitoring; Performance indices; Precision planting.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2576
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Optimization of RT-PCR reactions in studies with genes of lignin biosynthetic route in Saccharum spontaneum Anais da ABC (AABC)
LLERENA,JUAN P.P.; ARAÚJO,PEDRO; MAZZAFERA,PAULO.
ABSTRACT Saccharum spontaneum has been used for the development of energy cane a crop aimed to be used for the production of second-generation ethanol, or lignocellulosic ethanol. Lignin is a main challenge in the conversion of cell wall sugars into ethanol. In our studies to isolate the genes the lignin biosynthesis in S. spontaneum we have had great difficulty in RT-PCR reactions. Thus, we evaluated the effectiveness of different additives in the amplification of these genes. While COMT and CCoAOMT genes did not need any additives for other genes there was no amplification (HCT, F5H, 4CL and CCR) or the yield was very low (CAD and C4H). The application of supplementary cDNA was enough to overcome the non-specificity and low yield for C4H and C3H, while...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass; Cell wall; Energy cane; Lignin; Lignocellulosic ethanol; Sugarcane.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100509
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Potassium adsorption in soil cultivated with sugarcane Anais da ABC (AABC)
FREITAS,JOYCYELY M.A.S.; NETTO,ANDRÉ M.; CORRÊA,MARCUS M.; XAVIER,BRUNO T.L.; ASSIS,FERNANDO X. DE.
ABSTRACT Vinasse is a byproduct of the process of distillation of sugarcane juice for the manufacture of sugar and alcohol. Because it is rich in nutrients, mainly potassium (K), is used as fertilizer and applied via fertigation, without concerning for the fate of this compound in the soil. Thus, the objective of the study was to evaluate the interactions of the potassium ion (K+), applied via vinasse in a soil representative of the sugarcane zone of the State of Pernambuco using adsorption isotherms. The methodology was based on physical, chemical and soil mineralogical characterization, as well as equilibrium batch tests, where the experimental curves were fitted by Langmuir and Freundlich isotherm models. The results allowed to infer that the Freundlich...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Vinasse; Langmuir and Freundlich isotherms; Sorption.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100541
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Riparian forest potential to retain sediment and carbon evaluated by the 137Cs fallout and carbon isotopic ratio techniques Anais da ABC (AABC)
Pires,Luiz F.; Bacchi,Osny O.S.; Correchel,Vladia; Reichardt,Klaus; Filippe,Joseline.
Riparian forests can provide an important service for aquatic ecosystems by sequestering hillslopederived sediments. However, the width of a riparian buffer zone required to filter sediments is not yet wellunderstood. Here are used two complementary tracers to measure sediment retention. The 137Cs technique and the soil carbon isotopic ratios (δ13C) are utilized to investigate sediment deposition and erosion rates on a slope transect cultivated with sugarcane followed by a secondary riparian forest zone in Iracemápolis, State of São Paulo, Brazil. The 137Cs technique and the δ13C analysis showed that the width of a riparian vegetation in accordance to a Brazilian Environmental Law (Nº4.771/65) was not sufficient in trapping sediments coming from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Erosion; Δ13C; Sugarcane; C3 and C4 plants; Carbon.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200013
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Occurrence of tayras (Eira barbara Linnaeus, 1758) with anomalous coloration in Cerrado remnants in the state of São Paulo, Brazil Biota Neotropica
Scrich,Vitória M.; Pônzio,Marcella C.; Pasqualotto,Nielson; Rodrigues,Thiago F.; Paolino,Roberta M.; Chiarello,Adriano G..
Abstract: Coloration anomalies are mainly genetically-based disorders in which body pigmentation is either reduced (hypopigmentation) or produced in excess (melanism), in parts or the totality of the body. Cases of hypopigmentation have been documented in many neotropical mammals, including the tayra (Eira barbara Linnaeus, 1758). We expand the account of anomalous coloration occurrence presenting new registers of hypopigmented tayras in Brazil. Data was collected during a mammal survey carried out in three agricultural landscapes within the Cerrado domain in the northeast of the state of São Paulo. We obtained two kinds of records of hypopigmented tayras, one from direct sighting and the other from a camera-trap. We discuss the likely implications of this...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Anthropogenic matrix; Hypopigmentation; Leucism; Mustelid; Savannah; Sugarcane.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300501
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Spatial variability of soil CO2 emission in different topographic positions Bragantia
Brito,Liziane de Figueiredo; Marques Júnior,José; Pereira,Gener Tadeu; La Scala Junior,Newton.
The spatial variability of soil CO2 emission is controlled by several properties related to the production and transport of CO2 inside the soil. Considering that soil properties are also influenced by topography, the objective of this work was to investigate the spatial variability of soil CO2 emission in three different topographic positions in an area cultivated with sugarcane, just after mechanical harvest. One location was selected on a concave-shaped form and two others on linear-shaped form (in back-slope and foot-slope). Three grids were installed, one in each location, containing 69 points and measuring 90 x 90 m each. The spatial variability of soil CO2 emission was characterized by means of semivariance. Spatial variability models derived from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Carbon dioxide; Geostatistics; Kriging; Soil respiration; Topography.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000500004
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Assessment of Sugarcane Germplasm ( Saccharum spp. complex) Against Red Rot Pathogen Colletotrichum Falcatum BABT
Singh,Atul; Singh,Pratap; Tiwari,A K; Sharma,B L.
ABSTRACT Red rot, caused by Colletotrichum falcatum Went is the most important disease of sugarcane in India inflicting substantial loss to both cane industry and cane growers. To keep in view the importance of red rot disease of sugarcane, 117 accession of sugarcane germplasm including different Saccharum species and Indian and foreign commercial hybrids were tested against red rot with Cf 07, Cf 08 & Cf 09 (national pathotypes) by plug method of inoculation. Out of 117, 6 were found resistant and 12 were moderately resistant against red rot and rest were moderately susceptible/susceptible/highly susceptible. Theses resistance and moderately resistant accession can be further utilize to produce resistance varieties against the most devastating...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Germplasm; Resistance; Red rot; Plug method.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100203
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Physical attributes of kaolinitic and oxidic oxisols resulting from different usage systems BABT
Centurion,José Frederico; Beutler,Amauri Nelson; Souza,Zigomar Menezes de.
The objective of this study was to assess the physical attributes of a kaolinitic oxisol, medium texture (Haplustox) and an oxidic oxisol, clayey (Eutrustox) under different usage systems, localized in the region of Jaboticabal, SP, Brazil. The usage systems were sugarcane, cotton and forest. Parameters such as soil bulk density, total porosity, macro and microporosity at the depths of 0.0-0.1; 0.1-0.2; 0.2-0.3, and 0.3-0.4 m were evaluated. Haplustox showed greater bulk density and smaller total porosity, macro and microporosity. The usage increased the bulk density in 0.0-0.3 m depth, with greater effects on the kaolinitic oxisol, mainly in 0.1-0.2 m depth in the areas cultivated with sugarcane.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Cotton; Forest; Mineralogy; Porosity; Bulk density.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500007
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Use of vinasse and sugarcane bagasse for the production of enzymes by lignocellulolytic fungi BABT
Aguiar,Mario Mamede; Ferreira,Luiz Fernando Romanholo; Monteiro,Regina Teresa Rosim.
In this present work, three strains of Pleurotus and Trichoderma reesei were cultivated in media with pre-treated bagasse and vinasse. Cellulolytic and lignolytic activities and biomass production were analyzed. The treatment of the bagasse with 2% H2O2 + 1.5% NaOH + autoclave resulted in a greater fiber breakage increasing the cellulose level up to 1.2 times and decreasing 8.5 times the hemicellulose content. This treatment also resulted in a high lignolytic activity for all cultures utilized. T. reesei produced laccase, peroxidase and manganese-peroxidase in all the treatments, having its manganese-peroxidase activity raging from 1.9 to 4.8 times higher than the basidiomycetes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bagasse; Enzyme; Fungi; Lignocellulolytic; Pleurotus; Sugarcane.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500030
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Predaceous ant fauna in new sugarcane fields in the state of São Paulo, Brazil BABT
Rossi,Marcelo Nogueira; Fowler,Harold Gordon.
Predaceous ant fauna present in natural sugarcane field plantations in the state of São Paulo, Brazil, was evaluated by using sardine baits sampling technique. Three-month-old sugarcane plants were used for ant fauna estimation in two sugarcane mills, São João and Barra Mill. Twelve 30m X 30 m (900 m²) plots were previously delimited in each sugarcane mill for ant sampling. Ants were sampled in each plot by placing nine sardine baits in 12 mm X 75 mm plastic tubes. In the São João Mill, the predominant ant species observed was Solenopsis saevissima, followed by Dorymyrmex sp. 1, Pheidole sp. 2, and Crematogaster sp. 1. Considering only ant genus, Solenopsis, Pheidole, Dorymyrmex, and Crematogaster, were predominant. In the Barra Mill, the predominant ant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ants; Predation; Diatraea saccharalis; Sugarcane; Solenopsis; Pheidole.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500017
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Diversity of Endophytic and Epiphytic Bacteria From Sugarcane in Khuzestan, Iran BABT
Rezamahalleh,Hossein Moazzen; Khodakaramian,Gholam; Hassanzadeh,Nader.
Abstract Diverse microorganisms are living as endophytes in plant tissues and as epiphytes on plant surfaces in nature. Commercial formulations of bacteria antagonist to plant pathogenic microbes and ice nucleation active bacteria have been utilized as an environmentally safe method to manage plant disease and to prevent frost damage respectively. Bacteria were isolated from the leaf and sheath of sugarcane (CP69-1026 CP57-614, CP48-103, CP73-21, and CP70-1143 cultivars) verities grown in the field in Khuzestan province, Iran. Bacteria were found in both sheaths and leaves of sugarcane plants which they were significantly higher in density in leaves and which most were endophytic. The bacterial strains were 10 groups on the basis of the biochemical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 16S rRNA; Diversity; Endophytic bacteria; Sugarcane; Khuzestan.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100429
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Biochemical and morphological responses to abiotc elicitor chitin in suspension-cultured sugarcane cells BABT
Gallão,Maria Izabel; Cortelazzo,Ângelo Luiz; Fevereiro,Manuel Pedro Salema; Brito,Edy Sousa de.
Cells of Saccharum officinarum submitted to hydrolyzated chitin for 1 to 8h produced phenolic compounds. These alterations were observed through cytochemical methods using Toluidine Blue and Phloroglucinol/HCl. After 4 h, besides cell wall change, there was a change in nuclear pattern of chitin treated cells. There was a 96% increase in nuclear area in 6 h chitin treated material, as observed by Feulgen reaction. The treated cells showed chromatin compacted regions and a degeneration process of nucleoli. In the outer areas of cell wall, there was a polysaccharide desagregation, confirming results obtained for different plants with the use of other elicitors. Peroxidase activity was maximal after 4 h and decreased progressively. PAL activity started to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chitin; Elicitation; Peroxidase; PAL; Sugarcane; Tissue culture.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200002
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Spatial variability of the physical and mineralogical properties of the soil from the areas with variation in landscape shapes BABT
Souza,Zigomar Menezes de; Marques Júnior,José; Pereira,Gener Tadeu.
The objective of this work it was to use the geostatistics methods to investigate the spatial relationships between the physical and mineralogical properties of an oxisol planted with the sugarcane in an area of slight variations in the landform. The soil was sampled at 10 m regular intervals in the crossing points of a 100 x 100 m grid. At each point, the soil was collected at 0.0-0.2 m, 0.2-0.4 m and 0.4-0.6 m depths for the analyzes of physical properties and at 0.6-0.8 m for the mineralogical analyses. Both the Kt/Kt+Gb ratio and Kt relative crystallization level were higher in the compartment I than in the compartment II. As a consequence, the soil penetration resistance and bulk density were higher in the compartment I, while the macroporosity and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Geostatistics; Soil-landscape relationship.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200007
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Diversity of 16S rRNA genes from bacteria of sugarcane rhizosphere soil BJMBR
Pisa,G.; Magnani,G.S.; Weber,H.; Souza,E.M.; Faoro,H.; Monteiro,R.A.; Daros,E.; Baura,V.; Bespalhok,J.P.; Pedrosa,F.O.; Cruz,L.M..
Sugarcane is an important agricultural product of Brazil, with a total production of more than 500 million tons. Knowledge of the bacterial community associated with agricultural crops and the soil status is a decisive step towards understanding how microorganisms influence crop productivity. However, most studies aim to isolate endophytic or rhizosphere bacteria associated with the plant by culture-dependent approaches. Culture-independent approaches allow a more comprehensive view of entire bacterial communities in the environment. In the present study, we have used this approach to assess the bacterial community in the rhizosphere soil of sugarcane at different times and under different nitrogen fertilization conditions. At the high taxonomic level, few...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 16S rRNA; Biodiversity; Nitrogen fixation; Bacteria; Sugarcane; Soil.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001200004
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Specific plant induced biofilm formation in Methylobacterium species BJM
Rossetto,Priscilla B; Dourado,Manuella N; Quecine,Maria C; Andreote,Fernando D; Araújo,Welington L; Azevedo,João L; Pizzirani-Kleiner,Aline A.
Two endophytic strains of Methylobacterium spp. were used to evaluate biofilm formation on sugarcane roots and on inert wooden sticks. Results show that biofilm formation is variable and that plant surface and possibly root exudates have a role in Methylobacterium spp. host recognition, biofilm formation and successful colonization as endophytes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Methylobacterium; Endophytes; Biofilm; Sugarcane.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300006
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