The effect of Penicillium bilaii on wheat growth and phosphorus uptake as affected by soil pH, soil P and application of sewage sludge

Sánchez-Esteva, Sara; Gómez‐Muñoz, Beatriz; Jensen, Lars Stoumann; Neergaard, Andreas de; Magid, Jakob

doi:10.1186/s40538-016-0075-3

Cited by 23 publications

(24 citation statements)

References 35 publications

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“…Although the reasons for the suboptimal performance of the nursery plants in our studies are not entirely clear, the mitigation effect of BS applications is obvious (Figure 1) and may therefore, offer a perspective for optimization of nursery substrates frequently used also used in organic tomato production. Accordingly, for many of the microbial inoculants used in this study, root growth promoting and P-solubilizing properties are well documented [21,22,[31][32][33][34]. The same holds true for priming effects against various abiotic and abiotic stresses [20,21,[35][36][37] with protective effects also against potential substrate toxicities.…”

Section: Nursery and Vegetative Growthmentioning

confidence: 95%

Microbial Consortia versus Single-Strain Inoculants: An Advantage in PGPM-Assisted Tomato Production?

et al. 2019

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The use of biostimulants with plant growth-promoting properties, but without significant input of nutrients, is discussed as a strategy to increase stress resistance and nutrient use efficiency of crops. However, limited reproducibility under real production conditions remains a major challenge. The use of combination products based on microbial and non-microbial biostimulants or microbial consortia, with the aim to exploit complementary or synergistic interactions and increase the flexibility of responses under different environmental conditions, is discussed as a potential strategy to overcome this problem. This study aimed at comparing the efficiency of selected microbial single-strain inoculants with proven plant-growth promoting potential versus consortium products under real production conditions in large-scale tomato cultivation systems, exposed to different environmental challenges. In a protected greenhouse production system at Timisoara, Romania, with composted cow manure, guano, hair-, and feather-meals as major fertilizers, different fungal and bacterial single-strain inoculants, as well as microbial consortium products, showed very similar beneficial responses. Nursery performance, fruit setting, fruit size distribution, seasonal yield share, and cumulative yield (39–84% as compared to the control) were significantly improved over two growing periods. By contrast, superior performance of the microbial consortia products (MCPs) was recorded under more challenging environmental conditions in an open-field drip-fertigated tomato production system in the Negev desert, Israel with mineral fertilization on a high pH (7.9), low fertility, and sandy soil. This was reflected by improved phosphate (P) acquisition, a stimulation of vegetative shoot biomass production and increased final fruit yield under conditions of limited P supply. Moreover, MCP inoculation was associated with selective changes of the rhizosphere-bacterial community structure particularly with respect to Sphingobacteriia and Flavobacteria, reported as salinity indicators and drought stress protectants. Phosphate limitation reduced the diversity of bacterial populations at the root surface (rhizoplane) and this effect was reverted by MCP inoculation, reflecting the improved P status of the plants. The results support the hypothesis that the use of microbial consortia can increase the efficiency and reproducibility of BS-assisted strategies for crop production, particularly under challenging environmental conditions.

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Section: Nursery and Vegetative Growthmentioning

confidence: 95%

Microbial Consortia versus Single-Strain Inoculants: An Advantage in PGPM-Assisted Tomato Production?

et al. 2019

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“…phytohormones) by the PSM. Stimulation of root growth through phytohormones provides plants with greater access to soil P (through increased root–soil contact) and thus typically results in an indirect ‘apparent’ P benefit without a direct effect of PSM on P availability both under controlled and field conditions (Gulden & Vessey, 2000; Wakelin et al ., 2005; Sánchez‐Esteva et al ., 2016; Gómez‐Muñoz et al ., 2017; Meyer et al ., 2017; Sarabia et al ., 2018; Liu et al ., 2019; Hansen et al ., 2020).…”

Section: Phosphate Solubilisation In Vitro: Can These Mechanisms Occumentioning

confidence: 99%

“…Sánchez‐Esteva et al . (2016) compared the ability of P. bilaiae to improve wheat productivity in an acidic soil (pH H20 5.5) and in a calcareous soil (pH H20 8.2) and found that plant biomass only increased in calcareous soil. In another study, Wakelin et al .…”

Section: Factors Potentially Affecting Success or Failure Of Psm Inoculationmentioning

confidence: 99%

Phosphate‐solubilising microorganisms for improved crop productivity: a critical assessment

Raymond¹,

Gómez‐Muñoz

Bom³

et al. 2020

New Phytologist

128

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Summary Phosphate‐solubilising microorganisms (PSM) are often reported to have positive effects on crop productivity through enhanced phosphorus (P) nutrition. Our aim was to evaluate the validity of this concept. Most studies that report ‘positive effects’ of PSM on plant growth have been conducted under controlled conditions, whereas field experiments more frequently fail to demonstrate a positive response. Many studies have indicated that the mechanisms seen in vitro do not translate into improved crop P nutrition in complex soil–plant systems. Furthermore, associated mechanisms are often not rigorously assessed. We suggest that PSM do not mobilise sufficient P to change the crops’ nutritional environment under field conditions. The current concept, in which PSM solubilise P ‘for the plant’ should thus be revised. Although PSM have the capacity to solubilise P to meet their own needs, it is the turnover of the microbial biomass that subsequently provides P to plants over a longer time. Therefore, the existing concept of PSM function is unlikely to deliver a reliable strategy for increasing crop P nutrition. A further mechanistic understanding is needed to determine how P mobilisation by PSM as a component of the whole soil community can be manipulated to become more effective for plant P nutrition.

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“…In particular, Penicillium bilaii has been reported to solubilise phosphorus (P) under different conditions (Asea, Kucey, & Stewart, ; Kucey, ) and to increase plant growth and yield in wheat (Gleddie, Hnatowich, & Polonenko, ), bean (Kucey, ), oilseed rape (Kucey & Leggett, ), pea (Downey & van Kessel, ), lucerne (Beckie, Schlechte, Moulin, Gleddie, & Pulkinen, ) and maize (Leggett et al., ). In previous studies, we observed an increase in root growth in maize (Gómez‐Muñoz, Pittroff, et al., ) and wheat (Sánchez‐Esteva, Gómez‐Muñoz, Jensen, de Neergaard, & Magid, ) inoculated with P. bilaii , which could increase plant growth by better meeting plant nutrient demand (Liu et al., ). Exogenous salicylic acid could be another solution to mitigate the adverse effect of cold stress in early stages of maize growth.…”

Section: Introductionmentioning

confidence: 74%

Seed treatment with Penicillium sp. or Mn/Zn can alleviate the negative effects of cold stress in maize grown in soils dependent on soil fertility

Gómez‐Muñoz

Lekfeldt

Magid

et al. 2018

J Agronomy Crop Science

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Maize is becoming an increasingly important crop in northern Europe, but low temperatures during spring may hamper its growth. This effect may be caused by direct plant damage through oxidative stress or indirect damage through decreased uptake of nutrients, especially phosphorus (P), from the soil. Previous studies have indicated that treatment with micronutrients such as manganese and zinc (Mn/Zn), microbial inoculants (biostimulants) or exogenous salicylic acid can alleviate abiotic stress. Seed inoculation with microorganisms can also increase P uptake from the soil. In a pot experiment, we investigated whether the negative effects of cold stress could be alleviated by improving soil fertility (P level), inoculating seed with two different plant growth‐promoting fungi of the genus Penicillium sp., adding extra Mn/Zn at sowing or adding exogenous salicylic acid. These treatments were tested on maize plants subjected to cold stress and two different levels of soil fertility and harvested 28 and 51 days after sowing (DAS). We found that the effect of cold stress was not alleviated by improving soil fertility through the use of a more fertile (high P) soil or through fertilisation with plant‐available P in the form of triple superphosphate. Cold stress was also not alleviated by the treatment of seeds with salicylic acid. Addition of Mn/Zn and inoculation with one of the two Penicillium strains tested increased biomass production at 51 DAS (compared with the untreated control) in cold‐stressed plants grown in the high P soil, but not in the low P soil. Thus, addition of Mn/Zn and inoculation with Penicillium sp. can reduce the effects of cold stress in maize plants grown in fertile soil.

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The effect of Penicillium bilaii on wheat growth and phosphorus uptake as affected by soil pH, soil P and application of sewage sludge

Cited by 23 publications

References 35 publications

Microbial Consortia versus Single-Strain Inoculants: An Advantage in PGPM-Assisted Tomato Production?

Microbial Consortia versus Single-Strain Inoculants: An Advantage in PGPM-Assisted Tomato Production?

Phosphate‐solubilising microorganisms for improved crop productivity: a critical assessment

Seed treatment with Penicillium sp. or Mn/Zn can alleviate the negative effects of cold stress in maize grown in soils dependent on soil fertility

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