Consulta: subjectFacets:"Plant growth promotion"
Registros recuperados: 10
Data/hora: 03/06/2024 10:12:26

Torulaspora globosa: rhizosphere yeast promoting lettuce growth on seedlings and under field conditions
Provedor de dados: 75
Autores: Cabrini,Paloma G; Sala,Fernando C; Magri,Márcia M Rosa.
ABSTRACT Among soil microorganisms, one group stands out as beneficial to agricultural activities: a plant growth-promoting rhizobacteria (PGPM). These microorganisms support plants through phytohormone production, nutrient provision and plant health maintenance. Among these PGPM, yeasts have a high potential, which is still not very well known.This study aimed to evaluate the effect of inoculation with the rhizosphere yeast Torulaspora globosa (strain 5S55) on development of lettuce (cv. Crocantela). The first research consisted of inoculating seeds with yeast (100 cells/seed), and inoculating seeds, 7 and/or 15 days after emergence (DAE) (1x106 cells/plant). The second one consisted of transplanting seedlings from the first experiment to field....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Plant growth promotion; Biostimulant; Cv. Crocantela.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000300266

Isolation, bioprospecting and diversity of salt-tolerant bacteria associated with sugarcane in soils of Pernambuco, Brazil
Provedor de dados: 91
Autores: Leite,Maria C. B. S.; Farias,Andreza R. B. de; Freire,Fernando J.; Andreote,Fernando D.; Kuklinsky-Sobral,Júlia; Freire,Maria B. G. S.
ABSTRACT The selection of salinity tolerant bacteria may provide greater promotion of plant growth in soils with salt stress. This study aimed to isolate and select bacterial isolates of sugarcane, tolerant to salinity and plant growth promoters, and assess genetic diversity. To do so, endophytic root and rhizosphere of sugarcane, were isolated in culture medium with and without NaCl. The bacterial population density, the potential for biological nitrogen fixation (BNF), production of indole acetic acid (IAA), inorganic phosphate solubilization and quorum sensing molecule production were evaluated. Furthermore, the genetic diversity was assessed by Denaturing Gradient Gel Electrophoresis (DGGE) of nifH. Salinity tolerance tests were also conducted. There...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endophytic; Genetic variability; Plant growth promotion.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014001300073

Enhancement of clover growth by inoculation of P-solubilizing fungi and arbuscular mycorrhizal fungi
Provedor de dados: 42
Autores: Souchie,Edson L.; Azcón,Rosario; Barea,Jose M.; Silva,Eliane M.R.; Saggin-Júnior,Orivaldo J.
This study evaluated the synergism between several P-solubilizing fungi isolates and arbuscular mycorrhizal fungi to improve clover ( Trifolium pratense) growth in the presence of Araxá apatite. Clover was sown directly in plastic pots with 300g of sterilized washed sand, vermiculite and sepiolite 1:1:1 (v:v:v) as substrate, and grown in a controlled environment chamber. The substrate was fertilized with 3 g L-1 of Araxá apatite. A completely randomized design, in 8×2 factorial scheme (eight P-solubilizing fungi treatments with or without arbuscular mycorrhizal fungi)and four replicates were used. The P-solubilizing fungi treatments consisted of five Brazilian P-solubilizing fungi isolates (PSF 7, 9, 20, 21 and 22), two Spanish isolates ( Aspergillus niger...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araxá apatite; Phosphate solubilization; Co-inoculation; Plant growth promotion; Rhizosphere.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300023

Isolation, molecular characterization and growth-promotion activities of a cold tolerant bacterium Pseudomonas sp. NARs9 (MTCC9002) from the Indian Himalayas
Provedor de dados: 48
Autores: MISHRA,PANKAJ K; MISHRA,SMITA; BISHT,SHEKHAR C; SELVAKUMAR,G; KUNDU,S; BISHT,J. K; GUPTA,HARI SHANKAR.
A bacterium that grows and expresses plant growth promotion traits at 4°C was isolated from the rhizospheric soil of Amaranth, cultivated at a high altitude location in the North Western Indian Himalayas. The isolate was Gram negative and the cells appeared as rods (2.91 x 0.71 &amp;#956;m in size). It grew at temperatures ranging from 4 to 30°C, with a growth optimum at 28°C. It exhibited tolerance to a wide pH range (5-10; optimum 8.0) and salt concentrations up to 6% (wt/vol). Although it was sensitive to Rifampicin (R 20 &amp;#956;g mi-1), Gentamicin (G 3 &amp;#956;g mi-1), and Streptomycin (S 5 &amp;#956;g mi-1), it showed resistance to higher concentrations of Ampicillin (A 500 &amp;#956;g mi-1), Penicillin (P 300 &amp;#956;g mi-1), Polymixin B...
Tipo: Journal article
Palavras-chave: Cold tolerant; Pseudomonas lurida; 16S rRNA gene; Nutrient uptake; Plant growth promotion.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000300005

Azospirillum sp . inoculation in wheat, barley and oats seeds greenhouse experiments
Provedor de dados: 52
Autores: Dalla Santa,Osmar R.; Hernández,Ramona Fernández; Alvarez,Gergina L. Michelena; Ronzelli Junior,Pedro; Soccol,Carlos Ricardo.
The aim of the present work was to evaluate the inoculation effects of Azospirillum sp. RAM-7 strain, in seeds of wheat, barley and oats cultures on yield and total nitrogen content of the grains in greenhouse experiments. Seeds inoculation with Azospirillum sp. RAM-7 strain enhanced grain yields, even so, the responses vary among the evaluated cultures. For wheat, significant increases were obtained when the inoculation was associated to 100% of the recommended nitrogen, although the treatment that received only inoculation produced 7.4% above the control, however this difference wasn't significant. For barley, the presence of the inoculant substituted 20% the recommended nitrogen fertilization. For oats the inoculation with Azospirillum sp. RAM-7 didn't...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azospirillum; Wheat; Barley; Oats; Nitrogen fixation; Plant growth promotion.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600002

Exploitation of trichoderma species on the growth of Pythium Aphanidermatum in Chilli
Provedor de dados: 58
Autores: Muthukumar,A.; Eswaran,A.; Sanjeevkumas,K.
Damping-off of chilli caused by Pythium aphanidermatum is a major nursery disease in vegetables. In vitro experiments evaluated the effect of eight isolates of Trichoderma species (from chilli rhizosphere) were tested against P. aphanidermatum. All the Trichoderma species had varied antagonistic effects against the pathogen. Among them, TVC3 recorded maximum growth inhibition of P. aphanidermatum and produced more amounts of volatile and non-volatile metabolites. The culture filtrate of the Trichoderma isolate TVC3 recorded complete inhibition on the mycelial growth of pathogen at 15% concentration. Moreover, chilli seeds treated with culture filtrate of the isolate TVC3 recorded maximum germination percentage, shoot length, root length and vigour index of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Trichoderma species; Growth inhibition; Secondary metabolites; Plant growth promotion.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400047

Plant growth promoting capability and genetic diversity of bacteria isolated from mud volcano and lime cave of Andaman and Nicobar Islands
Provedor de dados: 58
Autores: Venkadesaperumal,Gopu; Amaresan,Natrajan; Kumar,Krishna.
Twenty four bacterial strains from four different regions of mud volcano and lime cave were isolated to estimate their diversity, plant growth promoting and biocontrol activities to use them as inoculant strains in the fields. An excellent antagonistic effect against four plant pathogens and plant growth promoting properties such as IAA production, HCN production, phosphate solubilization, siderophore production, starch hydrolysis and hydrolytic enzymes syntheses were identified in OM5 (Pantoea agglomerans) and EM9 (Exiguobacterium sp.) of 24 studied isolates. Seeds (Chili and tomato) inoculation with plant growth promoting strains resulted in increased percentage of seedling emergence, root length and plant weight. Results indicated that co-inoculation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant growth promotion; Phytopathogens; Mud volcano; Lime cave; Amplified ribosomal DNA restriction analysis (ADRDA).
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400018

Endophytic Bacillus strains enhance pearl millet growth and nutrient uptake under low-P
Provedor de dados: 58
Autores: Ribeiro,Vitória Palhares; Marriel,Ivanildo Evódio; Sousa,Sylvia Morais de; Lana,Ubiraci Gomes de Paula; Mattos,Bianca Braz; Oliveira,Christiane Abreu de; Gomes,Eliane Aparecida.
Abstract Bacterial endophytes are considered to have a beneficial effect on host plants, improving their growth by different mechanisms. The objective of this study was to investigate the capacity of four endophytic Bacillus strains to solubilize iron phosphate (Fe-P), produce siderophores and indole-acetic acid (IAA) in vitro, and to evaluate their plant growth promotion ability in greenhouse conditions by inoculation into pearl millet cultivated in a P-deficient soils without P fertilization, with Araxá rock phosphate or soluble triple superphosphate. All strains solubilized Fe-P and three of them produced carboxylate-type siderophores and high levels of IAA in the presence of tryptophan. Positive effect of inoculation of some of these strains on shoot...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endophytic; Indole-acetic acid; Phosphate solubilizing; Plant growth promotion; Siderophores.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500040

Antagonism of Serratia marcescens towards Phytophthora parasitica and its effects in promoting the growth of citrus
Provedor de dados: 58
Autores: Queiroz,Brigida Pimentel Villar de; Melo,Itamar Soares de.
Phytophthora parasitica causes serious widespread, and difficult-to-control root rots in warmer regions. This oomycete is one of the most important pathogen of citrus. This paper reports the biological control of the pathogen by a strain of Serratia marcescens R-35, isolated from citrus rhizosphere. In greenhouse trials, the bacterium suppressed more than 50% of the disease and promoted the plant growth.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Rhizobacteria; Plant growth promotion.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400008

Evaluation of root-knot nematode disease control and plant growth promotion potential of biofertilizer Ning shield on Trichosanthes kirilowii in the field
Provedor de dados: 58
Autores: Jiang,Chun-Hao; Xie,Ping; Li,Ke; Xie,Yue-Sheng; Chen,Liu-Jun; Wang,Jin-Suo; Xu,Quan; Guo,Jian-Hua.
Abstract Biofertilizer Ning shield was composed of different strains of plant growth promotion bacteria. In this study, the plant growth promotion and root-knot nematode disease control potential on Trichosanthes kirilowii in the field were evaluated. The application of Ning shield significantly reduced the diseases severity caused by Meloidogyne incognita, the biocontrol efficacy could reached up to 51.08%. Ning shield could also promote the growth of T. kirilowii in the field by increasing seedling emergence, height and the root weight. The results showed that the Ning shield could enhance the production yield up to 36.26%. Ning shield could also promote the plant growth by increasing the contents of available nitrogen, phosphorus, potassium and organic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichosanthes kirilowii; Root-knot nematode (RKN); Biofertilizer Ning shield; Biological control; Plant growth promotion.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200232