Effects of biofertilizer containing N-fixer, P and K solubilizers and AM fungi on maize growth: a greenhouse trial

Wu, Shengchun; Cao, Zhaoliang; Li, Z. G.; Cheung, Ka Chun; Wong, Ming Hung

doi:10.1016/j.geoderma.2004.07.003

Cited by 679 publications

(396 citation statements)

References 25 publications

(24 reference statements)

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“…Plant growth promoting activities of Pseudomonas spp. include production of indole acetic acid (IAA) [16], phosphate solubilization [60], degradation of toxic compounds [38] and production of biocontrol agents against fungal phytopathogens like the production of siderophores [7,14] or antibiotics [21,24] as well as against insect pests by the production of insect toxins [41].…”

Section: Introductionmentioning

confidence: 99%

Heavy metal tolerant Pseudomonas protegens isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities

Bensidhoum

Nabti

Tabli

et al. 2016

European Journal of Soil Biology

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The application of plant growth-promoting bacteria (PGPB) with biocontrol activities as inoculants of crops plants against phytopathogenic fungi and insect pests provides a biological alternative to the use of agrochemicals. Two Pseudomonas sp. strains were isolated from agricultural well water in the area of Bejaia, northeastern Algeria, located rather closely to a lead mine deposit. The isolates S4LiBe and S5LiBe had 16S rRNA gene sequence similarities of 99.4% to 99.7% with Pseudomonas protegens CHAO T and other P. protegens strains. The phenotypic profiles tested with BIOLOG-GN2-microplates were very similar, but showed also some remarkable differences. The isolates S4LiBe and S5LiBe showed plant growthpromoting potential based on the production of the phytohormone indole acetic acid and siderophores and the solubilization of insoluble phosphate. In addition, they produced chitinase and other polymer degrading enzymes. Interestingly, while S4LiBe and S5LiBe were resistant against heavy metals (2.0 mM K2Cr2O7 and 3.0 mM CoSO4, HgSO4, CdSO4 8H2O and PbCl2), the reference strain P. protegens CHAO T was very sensitive to Hg 2+ and Cd 2+ and had lower tolerance towards Co 2+ and Pb 2+ . The isolates S4LiBe and S5LiBe were very active in mycelial growth inhibition assays against Botrytis cinerea, Verticillium dahlia, Fusarium graminearum, Aspergillus niger and A. flavus (growth inhibition between 88% and 48%). Furthermore, S4LiBe and S5LiBe showed effective insecticidal activities, when tested in the Galleria injection assay and they were tested positive for the insect toxin gene fitD alike the reference strain CHA0 T . Finally, inoculation of barley seeds with S5LiBe resulted in significantly stimulated germination rate and growth of seedlings, with increased shoot length, shoot and root fresh weight, shoot and root dry weight as compared to non-inoculated plants.Thus, the heavy metal tolerant isolates S4LiBe and S5LiBe harbor a diverse potential as beneficial bacteria for agricultural application. They may be very useful even in polluted soils for the stimulation of e.g. biomass crops. The demonstration of successful isolation from agricultural well water may open more ready access for a wide variety of this kind of beneficial bacteria for agricultural application.

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Section: Introductionmentioning

confidence: 99%

Heavy metal tolerant Pseudomonas protegens isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities

Bensidhoum

Nabti

Tabli

et al. 2016

European Journal of Soil Biology

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“…Many plant growth studies have been conducted in several crops, including corn. Corn growth evaluations have been carried out for parameters such as planting density (Sangoi et al, 2005), fertilizers (Wu et al, 2005), and competition with weeds (Lum et al, 2005;Carvalho et al, 2007). Despite being labor-intensive, growth studies provide explanations on aspects related to yield.…”

Section: Introductionmentioning

confidence: 99%

Growth and yield of corn grain and green ear in competition with weeds

et al. 2009

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Studies on plant growth are interesting because they provide explanations for the factors that influence yield in various crops. The objective of this work was to evaluate growth and yield in corn cultivar AG1051, when in competition with weeds. Cultivar AG 1051 was submitted to two groups of treatments: weed control, and sampling periods for dry biomass evaluation. The weed control treatments consisted of hoeing (two hoeings performed at 20 and 40 days after sowing) and no hoeing. Sampling periods consisted of collecting the above-ground part and roots of corn every fifteen days, until 105 days after sowing (DAS); the first sampling was performed 30 DAS. A completely randomized block design with ten replicates was used. For the characteristics evaluated in a single season, statistical analyses were carried out as a random block experiment. For the characteristics evaluated in several periods, statistical analyses were carried out as random blocks with split-plots (weed control assigned to plots). Fourteen weed species, unevenly distributed throughout the experimental area, were the most important. The growth observed for the above-ground part and root system of corn was 30% smaller in the non-hoed plots, compared to the hoed plots. Lack of weed control increased dry matter of the above-ground part of the weeds and reduced the number of unhusked and husked marketable green ears by 23% and 49%, respectively. Grain yield reduction caused by lack of weed control reached 38%.

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“…For example, AM fungi can efficiently improve crop growth, biomass, and productivity particularly in extremely P-limited soil (Hu et al 2009), due to enhanced nutritional assimilation of plant as well as improved soil organic matter content and total nitrogen (Wu et al 2005). AM fungi can enhance plant resistance to drought (Li et al 2013; Liu et al 2015) and heavy metals (Dong et al 2008; Zhang et al 2009).…”

Section: Mycorrhizal Functionmentioning

confidence: 99%

Presidential address: recent advance of mycorrhizal research in China

Guo

2018

Mycology

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I am honoured to address as the seventh president of the Mycological Society of China. Mycorrhizal research has a long history in China, including taxonomy, diversity, ecology, molecular biology, and application. Particularly in the past four decades, great progress in mycorrhizal field has been made by Chinese mycologists and ecologists. In this paper, through my own experience, I summarised the main and important advance of recent mycorrhizal researches in terms of mycorrhizal fungal diversity, community, responses to global environmental changes, molecular biology, and function in China. Some perspectives are also proposed for future mycorrhizal studies in China.

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Effects of biofertilizer containing N-fixer, P and K solubilizers and AM fungi on maize growth: a greenhouse trial

Cited by 679 publications

References 25 publications

Heavy metal tolerant Pseudomonas protegens isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities

Heavy metal tolerant Pseudomonas protegens isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities

Growth and yield of corn grain and green ear in competition with weeds

Presidential address: recent advance of mycorrhizal research in China

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