scholarly journals Effect of plant growth promoting rhizobacterial (PGPR) inoculation on growth in tomato (Solanum Lycopersicum L.) and characterization for direct PGP abilities in Morocco

2017 ◽  
Vol 2 (2) ◽  
pp. 590-596 ◽  
Author(s):  
Moustaine M. ◽  
Elkahkahi R. ◽  
Benbouazza A. ◽  
Benkirane R. ◽  
Achbani E. H.
Keyword(s):  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato Plant (Solanum lycopersicum L. f1 hybrid Sachriya)

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
K S Jyolsna ◽  
N Bharathi ◽  
L Riyaz Ali ◽  
K A Paari
Keyword(s):  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Tomato Plant ◽  
Shoot Length ◽  
Plant Growth Promoting Bacteria ◽  
F1 Hybrid ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Organic Compost

Plant growth promoting bacteria enhance the growth in plants by solubilizing insoluble minerals, producing phytohormones and by secreting enzymes that resist pathogen attack. The present study was aimed at identifying the potential of Lysinibacillus macroides isolated from pea plant possessing rich microbial rhizobiome diversity in promoting the growth of tomato plant (Solanum lycopersicum L). Potential of L. macroides in the promotion of S. lycopersicum L. growth by increased shoot length, terminal leaf length and breadth was assessed. Anatomical sectioning of stem and root revealed no varied cellular pattern indicating that the supplemented bioculture is not toxic to S. lycopersicum. Plantlets treated with L. macroides along with organic compost showed an increased total phenol content (17.58±0.4 mg/g) compared to control samples (12.44±0.41 mg/g). Carbohydrate content was noticed to be around 1.3 folds higher in the L. macroides plus compost mixture supplemented slots compared to control sample. Significant increase in shoot length was evident in the L. macroides plus compost supplied slots (23.4±2.7 cm). Plant growth promoting properties might be due to the nitrogen fixing activity of the bacteria which enrich the soil composition along with the nutrients supplied by the organic compost. Rich microbial rhizobiome diversity in pea plant and the usage of L. macroides from a non-conventional source improves the diversity of the available PGPR for agricultural practices. Further research is needed to detect the mechanism of growth promotion and to explore the plant microbe interaction pathway.

scholarly journals Isolation and characterization of novel plant growth-promoting rhizobacteria (PGPR) isolates from tomato (Solanum lycopersicum L.) rhizospherical soil: A novel IAA producing bacteria

2021 ◽  
Vol 48 (2) ◽  
Author(s):  
Narjes H. Dashti ◽  
◽  
Nedaa Y. Ali Al-Sarraf ◽  
Vineetha M. Cherian ◽  
Magdy S. Montasser ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Indole Acetic Acid ◽  
Plant Growth Promoting Rhizobacteria ◽  
Nucleotide Sequence Analysis ◽  
Iaa Production ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Indole acetic acid (IAA) production is one of the distinctive traits of plant growth-promoting rhizobacteria (PGPR). Ten different rhizobacterial strains were isolated from the roots of tomato crops (Solanum lycopersicum L.), grown in Kuwait, and then screened for their plant growth-promoting abilities, with emphasis on IAA production. The isolated strains were identified by 16S partial r-RNA sequencing and further characterized by conventional biochemical tests. Based on the nucleotide sequence analysis and homology of the isolates, a phylogenetic tree was constructed. The plant growth-promoting abilities of the strains were determined by testing for ammonium production, hydrogen cyanide and acid production, growth in nitrogen-free media, phosphate solubilization, and IAA production. The potential IAA PGPRs were re-applied onto the rhizosphere of green-house grown tomato plants to determine their effects on tomato growth. The results have indicated that all isolated strains were able to produce indole acetic acid even without the presence of a tryptophan precursor.

scholarly journals Insights into the Role of Streptomyces hydrogenans as the Plant Growth Promoter, Photosynthetic Pigment Enhancer and Biocontrol Agent against Meloidogyne incognita in Solanum lycopersicum Seedlings

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1109
Author(s):  
Nandni Sharma ◽  
Kanika Khanna ◽  
Rajesh Kumari Manhas ◽  
Renu Bhardwaj ◽  
Puja Ohri ◽  
...  
Keyword(s):  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Photosynthetic Pigment ◽  
Defense Responses ◽  
Growth Promoter ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Meloidogyne Sp

Root-knot nematodes (RKN), Meloidogyne sp. hinders functioning of crops and causes global losses in terms of productivity and yield. Meloidogyne sp. are microscopic, obligatory endoparasites with ubiquitous distribution in different parts of the world. Taking into consideration these aspects, the present study was conducted to explore nematicidal activity of the Streptomyces hydrogenans strain DH-16 against M. incognita to regulate its pathogenicity in plants. In-vitro experimentation revealed that pretreated seeds with solvent and culture supernatant lowered root galls in infested plants and promoted growth of Solanum lycopersicum seedlings, revealed through the morphological analysis. Additionally, antioxidative defense responses were induced with microbes. However, oxidative stress markers were considerably reduced after microbial inoculations. Apart from this, secondary metabolites were assessed and modulated in RKN infested plants on microbial supplementations. Confocal studies evaluated glutathione accumulation within root apices and its enhancement was directly proportional to defense responses. Therefore, the current study concluded the role of S. hydrogenans in stimulating antioxidant potential against RKN along with growth promoting aids. Thus, the outcome of the current study endorses that metabolites produced by S. hydrogenans can be used as safe biocontrol agents against M. incognita and also as plant growth promoting agents.

scholarly journals Effect of Penicillium Extractsa on Germination Vigor in Subsequent Seedling Growth of Tomato (Solanum Lycopersicum L.)

2014 ◽  
Vol 65 (1) ◽  
pp. 71-77
Author(s):  
Ghazala Nasim ◽  
Sobia Mushtaq ◽  
Irum Mukhtar ◽  
Ibatsam Khokhar
Keyword(s):  
Plant Growth ◽  
Seedling Growth ◽  
Growth Promotion ◽  
Tomato Seedling ◽  
Growth And Survival ◽  
Tomato Seedlings ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Germination Vigor

AbstractPenicilliumspp. are well known to produce a variety of beneficial metabolites for plant growth and survival, as well as defend their hosts from attack of certain pathogens. In this study, effects of culture filtrate of differentPenicilliumspp. were tested on tomato seeds. On the whole, presoaking of seeds in filtrates of the ninePenicilliumisolates tested, significantly increased seed germination when compared with the control seeds. Cultural extracts ofP. expensumandP. billiwere highly effective in growth promotion up to 90%. It was also observed thatP. implicatumandP. oxlalicamsignificantly enhanced the root growth in tomato seedling as compare to other species. In case of shoot length,P. verrucosum(3.38),P. granulatum(2.81) andP. implicatum(2.62) were effective. HoweverP. implicatumwas quite promising to increase shoot and root length in tomato seedlings. Where asP. simplicissimiumandP. citrinumwere leas effective on seedling growth. The plant growth promoting ability ofPenicilliumstrains may help in growth permotion in other plants and crops.Penicilliumspp. are already known for producing mycotoxin and enzymes. Plant growth promoting ability ofPenicilliumspp will open new aspects of research and investigations. The role ofPenicil-liumspp. in tomato plant growth requires further exploration.

scholarly journals Application of Zinc Oxide Nanoparticles and Plant Growth Promoting Bacteria Reduces Genetic Impairment under Salt Stress in Tomato (Solanum lycopersicum L. ‘Linda’)

Agriculture ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 521
Author(s):  
Arash Hosseinpour ◽  
Kamil Haliloglu ◽  
Kagan Tolga Cinisli ◽  
Guller Ozkan ◽  
Halil Ibrahim Ozturk ◽  
...  
Keyword(s):  
Plant Growth ◽  
Salinity Stress ◽  
Zinc Oxide Nanoparticles ◽  
Lactobacillus Casei ◽  
Cytosine Methylation ◽  
Plant Growth Promoting Bacteria ◽  
Zno Nps ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Salinity is an edaphic stress that dramatically restricts worldwide crop production. Nanomaterials and plant growth-promoting bacteria (PGPB) are currently used to alleviate the negative effects of various stresses on plant growth and development. This study investigates the protective effects of different levels of zinc oxide nanoparticles (ZnO-NPs) (0, 20, and 40 mg L−1) and PGPBs (no bacteria, Bacillus subtilis, Lactobacillus casei, Bacillus pumilus) on DNA damage and cytosine methylation changes in the tomato (Solanum lycopersicum L. ‘Linda’) seedlings under salinity stress (250 mM NaCl). Coupled Restriction Enzyme Digestion-Random Amplification (CRED-RA) and Randomly Amplified Polymorphic DNA (RAPD) approaches were used to analyze changes in cytosine methylation and to determine how genotoxic effects influence genomic stability. Salinity stress increased the polymorphism rate assessed by RAPD, while PGPB and ZnO-NPs reduced the adverse effects of salinity stress. Genomic template stability was increased by the PGPBs and ZnO-NPs application; this increase was significant when Lactobacillus casei and 40 mg L−1 of ZnO-NPs were used.A decreased level of DNA methylation was observed in all treatments. Taken together, the use of PGPB and ZnO-NPs had a general positive effect under salinity stress reducing genetic impairment in tomato seedlings.

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