Plant Growth Promotion by Microbes

Lugtenberg, Ben; Malfanova, Natalia; Kamilova, Faina; Berg, Gabriele

doi:10.1002/9781118297674.ch53

Cited by 57 publications

(37 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two Streptomyces OTUs were the most abundant active members of the rhizosphere and on average amounted to 1.57 and 1.35% of the total active rhizosphere bacterial community (Tables S4 and S5). Only 18.3% of the positively responding OTUs were affiliated to 28 genera, which were previously known for their association with plant roots and their role as plant growth promoting bacteria [63,64], including Streptomyces, Pseudomonas, Mesorhizobium, and Rhizobium. However, the remaining 81.7% (1560) of OTUs were unclassified or belonged to 259 genera, which so far have not been explored for their possible beneficial interaction with plant roots.…”

Section: Active Rhizosphere Bacterial Communities Are Distinct From mentioning

confidence: 98%

Drivers of the composition of active rhizosphere bacterial communities in temperate grasslands

et al. 2019

View full text Add to dashboard Cite

The active bacterial rhizobiomes and root exudate profiles of phytometers of six plant species growing in central European temperate grassland communities were investigated in three regions located up to 700 km apart, across diverse edaphic conditions and along a strong land use gradient. The recruitment process from bulk soil communities was identified as the major direct driver of the composition of active rhizosphere bacterial communities. Unexpectedly, the effect of soil properties, particularly soil texture, water content, and soil type, strongly dominated over plant properties and the composition of polar root exudates of the primary metabolism. While plant species-specific selection of bacteria was minor, the RNA-based composition of active rhizosphere bacteria substantially differed between rhizosphere and bulk soil. Although other variables could additionally be responsible for the consistent enrichment of particular bacteria in the rhizosphere, distinct bacterial OTUs were linked to the presence of specific polar root exudates independent of individual plant species. Our study also identified numerous previously unknown taxa that are correlated with rhizosphere dynamics and hence represent suitable targets for future manipulations of the plant rhizobiome.

show abstract

Section: Active Rhizosphere Bacterial Communities Are Distinct From mentioning

confidence: 98%

Drivers of the composition of active rhizosphere bacterial communities in temperate grasslands

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Microorganisms are known to drive plant nutrient cycling and many other fundamental processes resulting in plant growth promotion (Barea et al 2007;Lugtenberg et al 2013). In particular, specific soil microorganisms (i.e., plant growth promoting rhizobacteria; PGPR) change the capacity of plants to acquire P from soil solution via mechanisms that include; (i) modifying soil sorption equilibria to facilitate P diffusion, (ii) enhancing mobilisation of poorly available sources of P, (iii) increasing the extension of root surface area, (iv) by stimulating root branching and/or root hair development and (v) altering root surface properties to enhance P uptake (Richardson et al 2009).…”

Section: Microbial Mobilisation Of Phosphorus In Soilmentioning

confidence: 99%

Phosphate Mobilisation by Soil Microorganisms

Barea

Richardson

2014

Principles of Plant-Microbe Interactions

View full text Add to dashboard Cite

Microorganisms are fundamental to the cycling of phosphorus (P) in soil-plant systems as they are involved in a range of processes that govern P transformations and availability. Soil microorganisms in particular are able to release plant available P from otherwise sparingly available forms of soil P, through solubilisation and mineralisation reactions of inorganic and organic P, respectively. The potential of phosphate solubilising microorganisms (PSM) to improve plant P nutrition is widely recognised, and the mechanisms involved are being investigated. The feasibility of developing efficient management systems based on PSM as biofertilisers is of current interest in rhizosphere biotechnology. Mycorrhizosphere interactions involving PSM and their interaction with AM fungi is of further relevance for the acquisition, transport and supply of P to plant roots, and therefore to soil P cycling and plant P nutrition. Managing these interactions (mycorrhizosphere tailoring) provides an environmentally-acceptable agro-technological practice to improve agricultural sustainability. Phosphorus in the Soil-Plant SystemPhosphorus (P) is a vital element for life on earth. In particular, P is essential for plant growth and development, as it is a component of fundamental macromolecules involved in genetic, regulatory, structural, signal transduction and other metabolic processes. In addition to the orthophosphate anion, other plant P-integrating molecules include nucleic acids and ADP/ATP, indispensable for photosynthesis, J.-M. Barea ( )

show abstract

“…Therefore we will discuss the beneficial potential of endophytes based on our knowledge of plant beneficial effects which rhizosphere bacteria can have. For recent reviews on the latter topic, see references [8,12,25,27,[57][58][59][60][61][62].…”

Section: Biotechnological Potential Of Bacte-rial Endophytes and Possmentioning

confidence: 99%

Biotechnological Applications of Bacterial Endophytes

Lugtenberg

2014

CBIOT

149

View full text Add to dashboard Cite

This review starts with a brief introduction on bacterial endophytes. Only small fractions of rhizosphere and phyllosphere bacteria are able to live inside the plant. Endophytes are bacteria and fungi that can be detected at a particular moment within the tissues of apparently healthy plant hosts without producing symptoms in or on the plant. Possible traits required by these bacteria to enter the plant and live inside will be discussed. Furthermore, we will focus on possible biotechnological applications of bacterial endophytes and present case studies as examples. Endophytes can promote plant growth, for example by the production of hormones or by making nutrients (such as nitrogen, phosphate and ferric ions) available to the plant. Endophytes can also promote plant growth indirectly, for example by suppression of plant diseases, by inactivating environmental pollutants, and by alleviating stresses of the plant caused by excess of the hormone ethylene, by heavy metals, by draught and by salinated soil. Some endophytic bacteria can produce nanoparticles which have numerous applications. At the end of the review we will discuss aspects involved in the commercialization of microbes.

show abstract

Plant Growth Promotion by Microbes

Cited by 57 publications

References 103 publications

Drivers of the composition of active rhizosphere bacterial communities in temperate grasslands

Drivers of the composition of active rhizosphere bacterial communities in temperate grasslands

Phosphate Mobilisation by Soil Microorganisms

Biotechnological Applications of Bacterial Endophytes

Contact Info

Product

Resources

About