Rhizosphere


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rhizosphere

[′rī·zə‚sfir]
(geology)
The soil region subject to the influence of plant roots and characterized by a zone of increased microbiological activity.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Rhizosphere

 

the layer of soil (2-3 mm) that surrounds the root of a plant and is inhabited by a large number of microorganisms.

The composition of the microflora of the rhizosphere depends on the soil type, ecological conditions, and the age of the plant. The surface of the root is inhabited by microorganisms predominantly of the epiphytic microflora of the seed. The microorganisms, which together are called the rhizoplane, play various roles: they convert certain compounds that are difficult for the plant to assimilate into readily assimilable ones, they synthesize biologically active substances, they enter into symbiosis with the plant, they excrete toxins, and they participate in the process of denitrification. Some representatives of the microflora parasitize plants.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive ?
In returns it increase the root exudates from plant to attracts PGPR and also increases root exudation by loosening plant cell walls which provide nutrients to rhizosphere bacteria (Riera et al., 2017).
CHARACTERIZATION OF PLANT GROWTH PROMOTING ACTIVITIES OF BACTERIAL ENDOPHYTES AND THEIR ANTIBACTERIAL POTENTIAL ISOLATED FROM CITRUS
We were able to transfer the synthetic signalling pathway to a number of plants, including cereals, and engineer a response by rhizosphere bacteria to rhizopine.'
University of Oxford: Engineering new signalling networks to produce crops that need less fertiliser
In this research, we used indigenous PSBs isolated from the sugarcane rhizosphere by Lamizadeh et al.
Effect of phosphate solubilising bacteria (Enterobacter cloacae) on phosphorus uptake efficiency in sugarcane (Saccharum officinarum L.)
The rhizosphere microbiome and plant health, Trends Plant Sci.
Metabolic Diversity of Rhizospheric Pseudomonas species of Bt Cotton Plant
Sulfate analysis: Bulk and rhizosphere soil samples from L.
Reintroduccion de cobertura vegetal en un humedal tropical contaminado con petroleo y sulfato: efecto de la rizosfera sobre poblaciones de Desulfovibrio
The pH in water increased with the increasing doses of limestone both in the rhizosphere and bulk soil (Table 3), which was expected.
Liming as a means of reducing copper toxicity in black oats/Calagem como forma de reducao da toxidez por cobre em aveia preta
In particular, we studied how the abundance of bacteria and nirS-type denitrifiers changes in the rhizosphere and rhizoplane of three emergent freshwater macrophytes (Juncus effusus, Peltandra virginica, and Typha latifolia) in two tidal freshwater wetlands.
Vegetation Effects on Bacteria and Denitrifier Abundance in the Soils of Two Tidal Freshwater Wetlands in Virginia
Plant Growth Promoting Rhizobacteria (PGPR) also do concentrate in the rhizosphere soil and confer the plants with beneficial effects such as solubilization of mineral nutrients, fixation of nitrogen, and disease suppression resulting from plant pathogens [12-17].
Selected Chemical Properties of Soybean Rhizosphere Soil as Influenced by Cropping Systems, Rhizobium Inoculation, and the Supply of Phosphorus and Potassium after Two Consecutive Cropping Seasons
The inoculum consisted of rhizosphere soil from 4 months old maize pot cultures containing spores, hyphae and heavily colonized root pieces.
Glomus mosseae (Gerd and Trappe) and Neemex Reduce Invasion and Development of Meloidogyne incognita
(2017) the soil at Nova Esperanga, a rural farming community located within the limit of Manaus, AM, Brazil, where the Coriandrum sativum (coriander) rhizosphere soil samples were collected, presents a sandy texture and at 10-20 cm depth is considered fertile.
Biodegradation of the fungicide carbendazim by bacteria from Coriandrum sativum L. rhizosphere/ Biodegradacao do agrotoxico carbendazim por bacterias da rizosfera de Coriandrum sativum L
Over the last two years, VBC has made sizeable commitments to rhizosphere technologies including the acquisition of Mycorrhizal Applications, LLC (MA) and several licensing and research agreements designed to accelerate its root zone portfolio.
Danforth Plant Science Center and Valent Biosciences Will Collaborate in Unique Root Science Initiative
Various rhizosphere bacteria are potential (micro) biological pesticides which are able to protect plants against disease and improve plant yield [11].
Effects of Rhizobacteria on the growth, and uptake of lead by tall fescue (Festuca arundinacea)

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