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Entomopathogenic Nematodes and Their Symbiotic Bacteria

Entomopathogenic Nematodes and Their Symbiotic Bacteria

S. Sivaramakrishnan; M. Razia

Springer-Verlag New York Inc.
2021
sidottu
This book provides basic information and different protocols associated with the Entomopathogenic nematodes (EPNs) and their symbiotic bacteria. Entomopathogenic nematodes (EPNs) of the genera Steinernema and Heterorhabditis and their associated bacterial symbionts Xenorhabdus and Photorhabdus aid nematode infective juveniles (IJs) in infecting and killing their insect hosts, creating a unique tripartite complex of host-vector-symbiont interactions. Due to this insect killing capability, EPNs are used as biological control agents of economically important insect pests. They are also a model system to study host-parasite interactions.It provides a systematic approach to various nematode procedures including pathogenicity, reproduction, foraging behaviour. It gives a brief outline on historical aspects, nematode-bacterium complex, biology and chemical ecology of EPNs. It concisely describes host insect rearing, nematode samplingand storage, isolation techniques, counting, handling and staining of nematodes, characterization including morphological, molecular and ecological studies, mass production, virulence bioassay, field application and efficacy. The book also includes methods and techniques for their associated symbiotic bacteria.This book serves as a laboratory manual and assists the readers to undertake advanced research in different aspects related to nematodes. It is useful for researchers in the fields of nematology, microbiology, bacteriology and entomology.
Entomopathogenic Nematodes and Their Symbiotic Bacteria

Entomopathogenic Nematodes and Their Symbiotic Bacteria

S. Sivaramakrishnan; M. Razia

SPRINGER-VERLAG NEW YORK INC.
2022
nidottu
This book provides basic information and different protocols associated with the Entomopathogenic nematodes (EPNs) and their symbiotic bacteria. Entomopathogenic nematodes (EPNs) of the genera Steinernema and Heterorhabditis and their associated bacterial symbionts Xenorhabdus and Photorhabdus aid nematode infective juveniles (IJs) in infecting and killing their insect hosts, creating a unique tripartite complex of host-vector-symbiont interactions. Due to this insect killing capability, EPNs are used as biological control agents of economically important insect pests. They are also a model system to study host-parasite interactions.It provides a systematic approach to various nematode procedures including pathogenicity, reproduction, foraging behaviour. It gives a brief outline on historical aspects, nematode-bacterium complex, biology and chemical ecology of EPNs. It concisely describes host insect rearing, nematode samplingand storage, isolation techniques, counting, handling and staining of nematodes, characterization including morphological, molecular and ecological studies, mass production, virulence bioassay, field application and efficacy. The book also includes methods and techniques for their associated symbiotic bacteria.This book serves as a laboratory manual and assists the readers to undertake advanced research in different aspects related to nematodes. It is useful for researchers in the fields of nematology, microbiology, bacteriology and entomology.
Multidrugs Resistant Bacteria Associated with Human Otitis Media

Multidrugs Resistant Bacteria Associated with Human Otitis Media

Ihsan Edan Abdulkare Alsaimary Alhilali; Jassim M Najim Albazoni; Prof Dr Ahmed Alabbasi

Noor Publishing
2019
pokkari
Gram's negative bacteria were the commonest microorganisms;it comprises (60 %). Pseudomonas aeruginosa was common causative agent (19.04%), followed by Staphylococcus aureus (16.7%) and Klebsiella spp.(14.3%). Mixed infection was found in high percent (74%), in which Pseudomonas aeruginosa and other microorganisms were more common . The antibiotic sensitivity pattern showed that Pseudomonas aeruginosa was sensitive to Ciprofloxacin, amoxicillin + clavulanic acid and gentamicin, while other is appeared resistant, Staph. aureus was sensitive to ciprofloxacin, amoxicillin + clavulanic acid, erthomycin, cephalexine and it is resistant to pencillin and ampicillin, klebsiella species were sensitive to ciprofloxacin, amoxicillin + clavulanic acid, gentamicin, while resistant to tetracycline. Geographical distribution, 100 (84%) of patients with CSOM living in urban area, 20(16.7) living in rural area . Smoking and passive smoking, 30(25%)smoker patients, 80(75%) non smoker, while 63(52.5%) patients with CSOM suffering from passive smoking. Distribution of feeding type among infants and children with CSOM 20(16.66%) breast feeding, while 10(8.33%) bottle feeding.
Bactérias endofíticas do maracujá amarelo

Bactérias endofíticas do maracujá amarelo

Felipe Alexandre Tenório; Tania M C Dos Santos; José Ubaldo L Oliveira

Novas Edicoes Academicas
2017
pokkari
O Maracuj amarelo (Passiflora edulis Sims f. flavicarpa) uma fruta com origem na Am rica tropical e bastante produzida no Brasil. Apesar do pa s ser considerado o maior produtor mundial, n o est entre os maiores exportadores, pois o consumo interno maior que sua produ o. Um aspecto comumente abordado a obten o de mudas de boa qualidade havendo a necessidade de encontrar alternativas sustent veis para a produ o da mesma. Complexos mecanismos adaptativos, evolutivamente, v m sendo desenvolvidos pelas plantas, muitos deles somente s o poss veis gra as s intera es com os micro-organismos, dos quais se destacam os endof ticos. Os micro-organismos endof ticos s o potencialmente teis agricultura e ind stria, v rias esp cies selecionadas de end fitos, como as bact rias, apresentam potencial de emprego nas ind strias de defensivos agr colas, al m de serem utilizadas como vetores gen ticos. O interesse no emprego dos endof ticos em pr ticas agr colas como na promo o de crescimento vegetal, controle biol gico de pragas e doen as de plantas, entre outras aplica es tem crescido, acreditando-se que estes sejam potenciais substitutos de produtos qu micos na natureza.
Einfluss von diazotrophen Bakterien auf Wachstum und Ertrag von Zuckerrohr

Einfluss von diazotrophen Bakterien auf Wachstum und Ertrag von Zuckerrohr

Hossain Gazi Akram; Solaiman A R M

Verlag Unser Wissen
2023
pokkari
F nf Experimente wurden durchgef hrt, um diazotrophe Bakterien zu charakterisieren und den Einfluss dieser Bakterien auf Wachstum und Ertrag von Zuckerrohr zu bewerten. Ein erster Versuch wurde durchgef hrt, um vielversprechende Diazotrophe zu charakterisieren, die aus dem Boden-Pflanze-System von Zuckerrohr in sechs Zuckerrohranbaugebieten von Bangladesch gesammelt wurden. Zwei vielversprechende diazotrophe St mme wurden identifiziert als Acinetobacter calcoaciticus und Bacillus cereus. Es wurde ein In-vitro-Versuch durchgef hrt, um die Auswirkungen der beiden vielversprechenden Diazotrophenst mme auf das Wachstum und die Biomasseproduktion von Zuckerrohr zu bestimmen. Ein Topfversuch wurde durchgef hrt, um die Wirkung der Inokulation mit Diazotrophen in Kombination mit Harnstoff auf Wachstum, Saftqualit t und Ertrag von Zuckerrohr zu bestimmen. Ein Versuch wurde durchgef hrt, um geeignete Tr germaterialien f r die Herstellung von Biod nger auszuw hlen. Schlie lich wurde ein sechsmonatiger Topfversuch durchgef hrt, um die vergleichende Leistung der diazotrophen Biod nger auf das Wachstum und den Biomasseertrag von Zuckerrohr zu bewerten.
Influence des bactéries diazotrophes sur la croissance et le rendement de la canne à sucre
Cinq exp riences ont t men es pour caract riser les bact ries diazotrophes et valuer l'influence de ces bact ries sur la croissance et le rendement de la canne sucre. Une exp rience pr liminaire a t men e pour caract riser les diazotrophes prometteurs collect s dans le syst me sol-plante de la canne sucre dans six r gions de culture de la canne sucre au Bangladesh. Deux souches de diazotrophes prometteuses ont t identifi es, savoir Acinetobacter calcoaciticus et Bacillus cereus. Une exp rience in vitro a t men e pour d terminer l'effet de deux souches diazotrophes prometteuses sur la croissance et la production de biomasse de la canne sucre. Une exp rience en pot a t men e pour d terminer l'effet de l'inoculation de diazotrophes en combinaison avec de l'ur e sur la croissance, la qualit du jus et le rendement de la canne sucre. Une exp rience a t men e pour s lectionner des mat riaux porteurs appropri s pour la production de biofertilisants. Enfin, une exp rience en pot a t men e pendant six mois pour valuer les performances comparatives des biofertilisants diazotrophes sur la croissance et le rendement en biomasse de la canne sucre.
Influência de Bactérias Diazotróficas no Crescimento e Rendimento da Cana-de-Açúcar

Influência de Bactérias Diazotróficas no Crescimento e Rendimento da Cana-de-Açúcar

Hossain Gazi Akram; Solaiman A R M

Edicoes Nosso Conhecimento
2023
pokkari
Foram efectuadas cinco experi ncias para caraterizar as bact rias diazotr ficas e avaliar a influ ncia destas bact rias no crescimento e na produ o da cana-de-a car. Foi realizada uma experi ncia preliminar para caraterizar diazotr ficos promissores recolhidos do sistema solo-planta da cana-de-a car em seis regi es de cultivo de cana-de-a car do Bangladesh. Foram identificadas duas estirpes de diazotr ficos promissoras Acinetobacter calcoaciticus e Bacillus cereus. Foi efectuada uma experi ncia in vitro para determinar o efeito de duas estirpes de diazotr ficos promissoras no crescimento e na produ o de biomassa da cana-de-a car. Foi realizada uma experi ncia em vaso para determinar o efeito da inocula o de diazotr ficos em combina o com ureia no crescimento, na qualidade do sumo e no rendimento da cana-de-a car. Foi realizada uma experi ncia para selecionar materiais de suporte adequados para a produ o de biofertilizante. Finalmente, foi realizada uma experi ncia em vaso durante seis meses para avaliar o desempenho comparativo dos biofertilizantes diazotr ficos no crescimento e na produ o de biomassa da cana-de-a car.
Bakterie endofityczne zóltej marakui

Bakterie endofityczne zóltej marakui

Felipe Alexandre Tenório; Tania M C Dos Santos; José Ubaldo L Oliveira

Wydawnictwo Nasza Wiedza
2025
pokkari
Ż lta marakuja (Passiflora edulis Sims f. flavicarpa) to owoc pochodzący z tropikalnej Ameryki, szeroko uprawiany w Brazylii. Pomimo że kraj ten jest uważany za największego producenta na świecie, nie należy do największych eksporter w, ponieważ konsumpcja krajowa przewyższa produkcję. Często poruszaną kwestią jest uzyskanie sadzonek dobrej jakości, co wymaga znalezienia zr wnoważonych alternatyw dla ich produkcji. Rośliny rozwijają zlożone mechanizmy adaptacyjne, z kt rych wiele jest możliwych tylko dzięki interakcjom z mikroorganizmami, w szczeg lności endofitycznymi. Mikroorganizmy endofityczne są potencjalnie przydatne w rolnictwie i przemyśle, a wiele wybranych gatunk w endofit w, takich jak bakterie, ma potencjal zastosowania w przemyśle środk w ochrony roślin, a także jest wykorzystywanych jako wektory genetyczne. Zainteresowanie wykorzystaniem endofit w w praktykach rolniczych, takich jak promowanie wzrostu roślin, biologiczna kontrola szkodnik w i chor b roślin, między innymi, rośnie, ponieważ uważa się, że mogą one potencjalnie zastąpic produkty chemiczne w naturze.
Bactéries endophytes du fruit de la passion jaune

Bactéries endophytes du fruit de la passion jaune

Felipe Alexandre Tenório; Tania M C Dos Santos; José Ubaldo L Oliveira

Editions Notre Savoir
2025
pokkari
Le fruit de la passion jaune (Passiflora edulis Sims f. flavicarpa) est un fruit originaire d'Am rique tropicale et largement produit au Br sil. Bien que le pays soit consid r comme le plus grand producteur mondial, il ne figure pas parmi les plus grands exportateurs, car la consommation int rieure est sup rieure sa production. Un aspect souvent abord est l'obtention de plants de bonne qualit , ce qui n cessite de trouver des alternatives durables pour leur production. Des m canismes adaptatifs complexes ont t d velopp s par les plantes au cours de leur volution, dont beaucoup ne sont possibles que gr ce aux interactions avec des micro-organismes, notamment les endophytes. Les micro-organismes endophytes sont potentiellement utiles l'agriculture et l'industrie. Plusieurs esp ces s lectionn es d'endophytes, telles que les bact ries, pr sentent un potentiel d'utilisation dans les industries des pesticides agricoles, en plus d' tre utilis es comme vecteurs g n tiques. L'int r t pour l'utilisation des endophytes dans les pratiques agricoles, telles que la promotion de la croissance v g tale, le contr le biologique des ravageurs et des maladies des plantes, entre autres applications, s'est accru, car on estime qu'ils pourraient remplacer les produits chimiques dans la nature.