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1دورية أكاديمية
المؤلفون: Hervio, Dominique, Chagot, Dominique, Godin, Pierre, Grizel, Henri, Mialhe, Eric
المصدر: Diseases of aquatic organisms (Inter-Research), 1991-08 , Vol. 12 , P. 67-70
مصطلحات موضوعية: Acid phosphate activity, Ostrea edulis, Bonamia ostreae
الوصف: Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
وصف الملف: application/pdf
العلاقة: https://archimer.ifremer.fr/doc/1991/publication-2755.pdfTest; https://archimer.ifremer.fr/doc/00000/2755Test/
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2رسالة جامعية
المؤلفون: Oliveira, Leandro Bittencourt de
مرشدي الرسالة: Quadros, Fernando Luiz Ferreira de, Cruz, Pablo, Nabinger, Carlos, Nicoloso, Fernando Teixeira, Viegas, Julio
المصدر: Repositório Institucional da UFSMUniversidade Federal de Santa MariaUFSM.
مصطلحات موضوعية: Atributos de folha, Estratégias de aquisição de recursos, Eficiência de uso de N e P, Atividade da fosfatase ácida, Remobilização de P, Leaf traits, Resource acquisition strategies, N and P use efficiency, Acid phosphate activity, P remobilization, CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
الوصف: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This thesis has the aim to evaluate growth of native grasses of natural grasslands Rio Grande do Sul state: Axonopus affinis, Paspalum notatum, Andropogon lateralis e Aristida laevis belonging to plant functional types A, B, C and D, respectively, in response to increasing N and P in soil. For this, the four grasses were grown in greenhouse with different N and P soil availability. The results were presented in two articles: the first evaluated species responses to increase N and P soil availability and relationships with functional traits and with tissue nitrogen concentration. The second article describes species response to increasing soil P availability besides P chemical fractions accumulated on plant tissue and acid phosphatase activity on leaves. All species respond to increase soil N and P availability but it was evidenced that resources capture species presented shorter time responses than conservation species. Independent of soil nutrients availability conditions where species were grown, the grass P. notatum showed the greater N and P use efficiency. The higher potential of relative response to increase N plus P and P availability was found for the grass A. affinis, which has leaf traits of resources capture species. For this, it was suggested that resources capture species have greater potential response to fertilization in relation to resources conservation species.
Esta tese tem o objetivo de avaliar o crescimento das gramíneas nativas das pastagens naturais do Rio Grande do Sul: Axonopus affinis, Paspalum notatum, Andropogon lateralis e Aristida laevis representantes dos tipos funcionais de plantas A e B de captura de recursos, e C e D de conservação de recursos, respectivamente, em reposta ao aumento na disponibilidade de nitrogênio e de fósforo no solo. Para isso, as quatro espécies foram cultivadas em casa de vegetação com diferentes condições de disponibilidade de P e N no solo. Os resultados foram apresentados em dois artigos: O primeiro avaliou a resposta das espécies à disponibilidade de N e P e as relações com atributos funcionais e com as concentrações de nitrogênio no tecido. O segundo artigo trata da capacidade das plantas em responder ao aumento da disponibilidade de P no solo além das frações químicas de acúmulo de P no tecido e da atividade da fosfatase ácida nas folhas. Nos dois artigos, as espécies responderam em massa tanto ao aumento da disponibilidade de N e de P quanto só de P. Porém no primeiro artigo, ficou evidenciado que a resposta foi identificada em um período mais curto para as espécies com características de captura de recursos em relação às de conservação de recursos. Independente das condições de disponibilidade de nutrientes onde as espécies foram cultivadas, a gramínea P. notatum demonstrou a maior eficiência de utilização tanto de N quando de P. O maior potencial de resposta relativo ao aumento da disponibilidade de N e P e de P foi encontrado para a gramínea A. affinis, a qual possui atributos foliares de captura de recursos. Assim, como esperado as espécies de captura de recursos têm maior potencial de resposta a adubação em relação às espécies de conservação de recursos.وصف الملف: application/pdf
العلاقة: 500400000002; 400; 300; 500; 87f7a696-584d-4ee4-ad83-13fd04320556; 79e62291-037d-4024-8558-af7921d4084f; a84db9b1-ddb4-4269-813a-b11333118f4f; 63506d8e-5a73-486a-9632-f6aebdf2ada9; d308cda3-16c2-4129-96a8-1e610df362b2; 1af1e145-74bc-4bf4-8396-644ce4ce90e5
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3رسالة جامعية
المؤلفون: Oliveira, Leandro Bittencourt de
المساهمون: Quadros, Fernando Luiz Ferreira de, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780560Z8Test, Cruz, Pablo, http://lattes.cnpq.br/9890166079392793Test, Nabinger, Carlos, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781775P6Test, Nicoloso, Fernando Teixeira, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781651E5Test, Viegas, Julio, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782452P7Test
مصطلحات موضوعية: Atributos de folha, Estratégias de aquisição de recursos, Eficiência de uso de N e P, Atividade da fosfatase ácida, Remobilização de P, Leaf traits, Resource acquisition strategies, N and P use efficiency, Acid phosphate activity, P remobilization, CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
الوصف: This thesis has the aim to evaluate growth of native grasses of natural grasslands Rio Grande do Sul state: Axonopus affinis, Paspalum notatum, Andropogon lateralis e Aristida laevis belonging to plant functional types A, B, C and D, respectively, in response to increasing N and P in soil. For this, the four grasses were grown in greenhouse with different N and P soil availability. The results were presented in two articles: the first evaluated species responses to increase N and P soil availability and relationships with functional traits and with tissue nitrogen concentration. The second article describes species response to increasing soil P availability besides P chemical fractions accumulated on plant tissue and acid phosphatase activity on leaves. All species respond to increase soil N and P availability but it was evidenced that resources capture species presented shorter time responses than conservation species. Independent of soil nutrients availability conditions where species were grown, the grass P. notatum showed the greater N and P use efficiency. The higher potential of relative response to increase N plus P and P availability was found for the grass A. affinis, which has leaf traits of resources capture species. For this, it was suggested that resources capture species have greater potential response to fertilization in relation to resources conservation species. ; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior ; Esta tese tem o objetivo de avaliar o crescimento das gramíneas nativas das pastagens naturais do Rio Grande do Sul: Axonopus affinis, Paspalum notatum, Andropogon lateralis e Aristida laevis representantes dos tipos funcionais de plantas A e B de captura de recursos, e C e D de conservação de recursos, respectivamente, em reposta ao aumento na disponibilidade de nitrogênio e de fósforo no solo. Para isso, as quatro espécies foram cultivadas em casa de vegetação com diferentes condições de disponibilidade de P e N no solo. Os resultados foram apresentados em dois artigos: O ...
وصف الملف: application/pdf
العلاقة: OLIVEIRA, Leandro Bittencourt de. GROWTH AND NITROGEN AND PHOSPHOUS USES OF FOUR NATIVE GRASSES OF RIO GRANDE DO SUL STATE. 2015. 98 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015.; http://repositorio.ufsm.br/handle/1/4371Test
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4رسالة جامعية
المؤلفون: Suresh, K, Dr.Mohandas, A
مصطلحات موضوعية: Haemocytes of Sunetta scripta, Gycogen and total carbohydrate, Protein in the haemolymph, Acid phosphate activity
الوصف: It is well known that under certain conditions, populations of oysters and clams are susceptible to destructive epizootics caused by pathogenic micro-organisms. It has also been shown that exposure of mammals to certain heavy metals causes increased susceptibility to and severity of microbial infections (Koller, 1980). Consequently, pollutants that affect haemocyte viability or interfere with internal defence functions of the haemocytes which are considered as the major means of defence in moliuscs against invading foreign organisms and pathogens (Cheng, 1981) may have profound effect on long term survival of molluscan populations. All these justify the significance of the present study in the context of the current status on molluscan culture programme, and how the data on molluscan haematological studies .could be taken as the reliable criteria for pollution monitoring studies. ; Cochin University of Science And Technology ; School of Marine Sciences, Cochin University of Science and Technology
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5مورد إلكتروني
المصدر: Diseases of aquatic organisms (Inter-Research), 1991-08 , Vol. 12 , P. 67-70
مستخلص: Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
مصطلحات الفهرس: Acid phosphate activity, Ostrea edulis, Bonamia ostreae, text, Article, info:eu-repo/semantics/article
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6مورد إلكتروني
المصدر: Diseases of aquatic organisms (Inter-Research), 1991-08 , Vol. 12 , P. 67-70
مستخلص: Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
مصطلحات الفهرس: Acid phosphate activity, Ostrea edulis, Bonamia ostreae, text, Publication, info:eu-repo/semantics/article
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7مورد إلكتروني
المصدر: Diseases of aquatic organisms (Inter-Research), 1991-08 , Vol. 12 , P. 67-70
مستخلص: Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
مصطلحات الفهرس: Acid phosphate activity, Ostrea edulis, Bonamia ostreae, text, Article, info:eu-repo/semantics/article
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8مورد إلكتروني
المصدر: Diseases of aquatic organisms (Inter-Research), 1991-08 , Vol. 12 , P. 67-70
مستخلص: Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
مصطلحات الفهرس: Acid phosphate activity, Ostrea edulis, Bonamia ostreae, text, Publication, info:eu-repo/semantics/article
