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RISS 인기검색어
- 검색키워드
- 저자 : Da Maia, Luciano Carlos (검색결과 16 건)
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da Silva Campos, Maryluce Albuquerque,da Silva, Fabio Sergio Barbosa,Yano-Melo, Adriana Mayumi,de Melo, Natoniel Franklin,Maia, Leonor Costa The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.3
An experiment was conducted to evaluate the tolerance of micropropagated and mycorrhized alpinia plants to the parasite Meloidogyne arenaria. The experimental design was completely randomized with a factorial arrangement of four inoculation treatments with arbuscular mycorrhizal fungi (AMF) (Gigaspora albida, Claroideoglomus etunicatum, Acaulospora longula, and a non-inoculated control) in the presence or absence of M. arenaria with five replicates. The following characteristics were evaluated after 270 days of mycorrhization and 170 days of M. arenaria inoculation: height, number of leaves and tillers, fresh mass of aerial and subterranean parts, dry mass of aerial parts, foliar area, nutritional content, mycorrhizal colonization, AMF sporulation, and the number of galls, egg masses, and eggs. The results indicated a significant interaction between the treatments for AMF spore density, total mycorrhizal colonization, and nutrient content (Zn, Na, and N), while the remaining parameters were influenced by either AMF or nematodes. Plants inoculated with A. longula or C. etunicatum exhibited greater growth than the control. Lower N content was observed in plants inoculated with AMF, while Zn and Na were found in larger quantities in plants inoculated with C. etunicatum. Fewer galls were observed on mycorrhized plants, and egg mass production and the number of eggs were lower in plants inoculated with G. albida. Plants inoculated with A. longula showed a higher percentage of total mycorrhizal colonization in the presence of the nematode. Therefore, the association of micropropagated alpinia plants and A. longula enhanced tolerance to parasitism by M. arenaria.
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Maryluce Albuquerque da Silva Campos,Fábio Sérgio Barbosa da Silva,Adriana Mayumi Yano-Melo,Natoniel Franklin de Melo,Elvira Maria Régis Pedrosa,Leonor Costa Maia 한국식물병리학회 2013 Plant Pathology Journal Vol.29 No.3
In the Northeast of Brazil, expansion of guava crops has been impaired by Meloidogyne enterolobii that causes root galls, leaf fall and plant death. Considering the fact that arbuscular mycorrhizal Fungi (AMF) improve plant growth giving protection against damages by plant pathogens, this work was carried out to select AMF efficient to increase production of guava seedlings and their tolerance to M. enterolobii. Seedlings of guava were inoculated with 200 spores of Gigaspora albida,Glomus etunicatum or Acaulospora longula and 55 days later with 4,000 eggs of M. enterolobii. The interactions between the AMF and M. enterolobii were assessed by measuring leaf number, aerial dry biomass, CO2 evolution and arbuscular and total mycorrhizal colonization. In general, plant growth was improved by the treatments with A. longula or with G. albida. The presence of the nematode decreased arbuscular colonization and increased general enzymatic activity. Higher dehydrogenase activity occurred with the A. longula treatment and CO2 evolution was higher in the control with the nematode. More spores and higher production of glomalin-related soil proteins were observed in the treatment with G. albida. The numbers of galls, egg masses and eggs were reduced in the presence of A. longula. Inoculation with this fungus benefitted plant growth and decreased nematode reproduction.
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Maryluce Albuquerque da Silva Campos,Fábio Sérgio Barbosa da Silva,Adriana Mayumi Yano-Melo,Natoniel Franklin de Melo,Leonor Costa Maia 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.3
An experiment was conducted to evaluate the tolerance of micropropagated and mycorrhized alpinia plants to the parasite Meloidogyne arenaria. The experimental design was completely randomized with a factorial arrangement of four inoculation treatments with arbuscular mycorrhizal fungi (AMF) (Gigaspora albida, Claroideoglomus etunicatum, Acaulospora longula, and a non-inoculated control) in the presence or absence of M. arenaria with five replicates. The following characteristics were evaluated after 270 days of mycorrhization and 170 days of M. arenaria inoculation: height, number of leaves and tillers, fresh mass of aerial and subterranean parts, dry mass of aerial parts, foliar area, nutritional content, mycorrhizal colonization, AMF sporulation, and the number of galls, egg masses, and eggs. The results indicated a significant interaction between the treatments for AMF spore density, total mycorrhizal colonization, and nutrient content (Zn, Na, and N), while the remaining parameters were influenced by either AMF or nematodes. Plants inoculated with A. longula or C. etunicatum exhibited greater growth than the control. Lower N content was observed in plants inoculated with AMF, while Zn and Na were found in larger quantities in plants inoculated with C. etunicatum. Fewer galls were observed on mycorrhized plants, and egg mass production and the number of eggs were lower in plants inoculated with G. albida. Plants inoculated with A. longula showed a higher percentage of total mycorrhizal colonization in the presence of the nematode. Therefore, the association of micropropagated alpinia plants and A. longula enhanced tolerance to parasitism by M. arenaria.
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Campos, Maryluce Albuquerque Da Silva,Silva, Fabio Sergio Barbosa Da,Yano-Melo, Adriana Mayumi,Melo, Natoniel Franklin De,Pedrosa, Elvira Maria Regis,Maia, Leonor Costa The Korean Society of Plant Pathology 2013 Plant Pathology Journal Vol.29 No.3
In the Northeast of Brazil, expansion of guava crops has been impaired by Meloidogyne enterolobii that causes root galls, leaf fall and plant death. Considering the fact that arbuscular mycorrhizal Fungi (AMF) improve plant growth giving protection against damages by plant pathogens, this work was carried out to select AMF efficient to increase production of guava seedlings and their tolerance to M. enterolobii. Seedlings of guava were inoculated with 200 spores of Gigaspora albida, Glomus etunicatum or Acaulospora longula and 55 days later with 4,000 eggs of M. enterolobii. The interactions between the AMF and M. enterolobii were assessed by measuring leaf number, aerial dry biomass, $CO_2$ evolution and arbuscular and total mycorrhizal colonization. In general, plant growth was improved by the treatments with A. longula or with G. albida. The presence of the nematode decreased arbuscular colonization and increased general enzymatic activity. Higher dehydrogenase activity occurred with the A. longula treatment and $CO_2$ evolution was higher in the control with the nematode. More spores and higher production of glomalin-related soil proteins were observed in the treatment with G. albida. The numbers of galls, egg masses and eggs were reduced in the presence of A. longula. Inoculation with this fungus benefitted plant growth and decreased nematode reproduction.
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M.da CT. Cavalcanti Liberato,Selene Maia de Morais,Sônia Maria Costa Siqueira,Jane Eire Silva Alencar de Menezes,Denise Nogueira Ramos,Lyeghyna Karla Andrade Machado,Islay Lima Magalha˜es 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.6
Twenty-three honey samples of Apis mellifera L. forged on plants from northeastern Brazil were analyzed to determine total phenolic content, flavonoid content, antioxidant activity, and antiacetylcholinesterase activity. The total phenol content was determined by using the Folin–Ciocalteu method, and the flavonoid content was analyzed using by the aluminum chloride method. The antioxidant activity was evaluated using the diphenyl-1-picrylhydrazyl–scavenging test. Honey samples from Lippia sidoides Cham. (mean [±standard deviation] 50% inhibitory concentration [IC_50], 4.20±1.07 mg/mL) and Myracrodruon urundeuva Fr. All. (IC_50, 28.27±1.41 mg/mL) showed better antioxidant activity and presented higher total phenol values (108.50±3.52 mg gallic acid equivalents/100 g for L. sidoides and 68.55±1.01 mg gallic acid equivalents/100 g for M. urundeuva). Several honey samples had relevant results on antiacetylcholinesterase assay. The biological activity of honeys is related to their floral origin, and medicinal plants constitute a useful resource for the generation of functional foods.
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Thurow Liamara Bahr,da Silva Raíssa Martins,Venske Eduardo,Ceolin Guilherme Paim,de Oliveira Victoria Freitas,Stülp Cristiano,Figueiredo Ricardo Garcia,Tessmann Elisane Weber,da Maia Luciano Carlos,de 한국작물학회 2024 Journal of crop science and biotechnology Vol.27 No.2
Although genomic tools have proven to be very useful for plant breeding, most bread wheat breeding programs at developing countries still rely solely on phenotypic selection. Controversially, applied studies on this theme are gradually becoming scarce worldwide, especially the ones focusing on specifc traits, such as plant height and spike number. The present study aimed to depict the genetic efects of selecting for both decrease and increase of plant height and spike number on a set of Brazilian wheat populations at early segregating generations, bringing information for the development of efective breeding strategies. Five populations in F2 were subjected to fve selection criteria, including no selection. Eight agronomic traits were assayed. Plant height has shown the highest broad-sense heritability coefcients, selection diferentials, selection gain estimates, and real selection gains. On the other hand, the means for spike number for these parameters were low to moderate. Selection for these traits impacted on indirect selection gains for all other traits. Early selection for increasing both plant height and spike number per plant has positive efects on grain yield per plant and its components on the segregating populations assayed, according to selection gain estimates. The present germplasm does not allow for further plant shortening without losing yield potentia
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Fakhriya Kareem,Luciano Carlos da Maia,Michael P. Fuller 한국작물학회 2019 Journal of crop science and biotechnology Vol.22 No.1
Drought is a major limiting factor of wheat production globally. In this research, salicylic acid was used in order to increase drought tolerance in Tamooz 2 of Iraqi wheat. It was observed that the SA treatment had animportant positive impact on the final wheat biomass and on the yield components (spike drying weight, grain dry weight, 1000 grain dry weight). The significant positive role of SA treatment on the up-regulation of CBF14 gene was confirmed. The expression of CBF14 was significantly affected by the developmental stage of wheat plants and the period between SA spray and sampling. We believe that results obtained in this study help to understand more deeply the molecular mechanism of drought tolerance in wheat. It could also have important practical applications, especially for wheat growers in dry climates.
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Effect of Propionic Acid in the Germination of Rice Genotypes
Mauricio Marini Kopp,Viviane Kopp da Luz,Luciano Carlos da Maia,Rogério Oliveira de Sousa,Antonio Costa de Oliveira 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.4
The objective of this work was to evaluate the germination of 12 rice genotypes under propionic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. The tests were conducted with the first count of germination (PCG) and germination (G) of the genotypes subjected to 0, 3, 6, and 9 mM propionic acid concentrations. The seeds of each genotype were placed in germitest paper pre-soaked in treatment solutions forming individual bags. The germination was performed at 25 °C and the counts were carried out at 7 (PCG) and 14 days (G). A factorial random block design was performed with four replications of 50 seeds per genotype. Our study revealed that doses up to 9 mM propionic acid in the pre-soaking solution were efficient for genetic variability studies involving the character germination in rice; genetic variability for germination was detected in the collection of rice genotypes when subjected to propionic acid toxic effects. The genotypes Guichow, Dawn, and Toride-1 showed germination stability when subjected to increasing levels of propionic acid, and genotypes originated from irrigated system cultivation performed better when subjected to propionic acid stress. These three genotypes will be a good biological material to for enhance the resistance to phytotoxic compounds in rice. The objective of this work was to evaluate the germination of 12 rice genotypes under propionic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. The tests were conducted with the first count of germination (PCG) and germination (G) of the genotypes subjected to 0, 3, 6, and 9 mM propionic acid concentrations. The seeds of each genotype were placed in germitest paper pre-soaked in treatment solutions forming individual bags. The germination was performed at 25 °C and the counts were carried out at 7 (PCG) and 14 days (G). A factorial random block design was performed with four replications of 50 seeds per genotype. Our study revealed that doses up to 9 mM propionic acid in the pre-soaking solution were efficient for genetic variability studies involving the character germination in rice; genetic variability for germination was detected in the collection of rice genotypes when subjected to propionic acid toxic effects. The genotypes Guichow, Dawn, and Toride-1 showed germination stability when subjected to increasing levels of propionic acid, and genotypes originated from irrigated system cultivation performed better when subjected to propionic acid stress. These three genotypes will be a good biological material to for enhance the resistance to phytotoxic compounds in rice.
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Importance of Heat Shock Proteins in Maize
Pegoraro, Camila,Mertz, Liliane Marcia,Da Maia, Luciano Carlos,Rombaldi, Cesar Valmor,De Oliveira, Antonio Costa 한국작물학회 2011 Journal of crop science and biotechnology Vol.14 No.2
Abiotic and biotic stress conditions cause extensive losses to maize production, mainly due to protein dysfunction in these condi-tions. In higher plants, the occurrence of heat-shock proteins (HSPs) in response to different environmental stresses is a universal phenomenon and has been well documented. Many studies have demonstrated that most HSPs are involved in many regulatory path-ways, act as molecular chaperones for other cell proteins, and have strong cytoprotective effects. Although many functional roles for HSPs are known, the mechanisms for these multiple functions are not entirely understood. Here we reviewed the correlation among HSP genes/proteins and plant tolerance, especially maize, in different environmental stresses. Due to the low availability of informa-tion regarding the expression of HSP genes in response to different stresses in maize, we decided to mine databases in order to gener-ate ew insights related to this topic.
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