The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species

B. S. Griffiths, R. Welschen, J. J.C.M. van Arendonk, H. Lambers

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

Microbial growth in the rhizosphere is affected by the release of organic material from roots, so differences in carbon budgets between plants may affect their rhizosphere biology. This was tested by sampling populations of bacteria and bacteriophagous fauna from the rhizosphere of Lolium perenne, Festuca arundinacea, Poa annua, and Poa pratensis, under conditions of high and low nitrate availability. Concentrations of soluble phenolics and lignin varied considerably between the species but were not related to differences in rhizosphere biology. L. perenne and F. arundinacea supported fewer bacteria than the Poa species. There was no significant rhizosphere effect on the groups of protozoa. The major indicators of rhizosphere productivity were the bacterial-feeding nematodes (mainly Acrobeloides spp.), and there was a large positive effect of added nitrate. Nematode biomass was significantly lower in the rhizosphere of the slow-growing P. pratensis compared with the fast-growing P. annua, indicating that the differential allocation of carbon has affects on rhizosphere biology. A large rhizosphere effect on enchytraeid worms was also observed, and their potential importance in the rhizosphere is discussed.

Original languageEnglish
Pages (from-to)253-259
Number of pages7
JournalOecologia
Volume91
Issue number2
DOIs
Publication statusPublished - 1 Aug 1992
Externally publishedYes

Fingerprint

nitrate nitrogen
rhizosphere
grass
fauna
nitrate
grasses
bacterium
nitrogen
bacteria
Poa annua
Poa pratensis
Festuca arundinacea
Lolium perenne
Biological Sciences
nematode
Acrobeloides
nitrates
Nematoda
effect
Poa

Cite this

Griffiths, B. S. ; Welschen, R. ; van Arendonk, J. J.C.M. ; Lambers, H. / The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species. In: Oecologia. 1992 ; Vol. 91, No. 2. pp. 253-259.
@article{aaf9931f805f43788562896fadbdf44d,
title = "The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species",
abstract = "Microbial growth in the rhizosphere is affected by the release of organic material from roots, so differences in carbon budgets between plants may affect their rhizosphere biology. This was tested by sampling populations of bacteria and bacteriophagous fauna from the rhizosphere of Lolium perenne, Festuca arundinacea, Poa annua, and Poa pratensis, under conditions of high and low nitrate availability. Concentrations of soluble phenolics and lignin varied considerably between the species but were not related to differences in rhizosphere biology. L. perenne and F. arundinacea supported fewer bacteria than the Poa species. There was no significant rhizosphere effect on the groups of protozoa. The major indicators of rhizosphere productivity were the bacterial-feeding nematodes (mainly Acrobeloides spp.), and there was a large positive effect of added nitrate. Nematode biomass was significantly lower in the rhizosphere of the slow-growing P. pratensis compared with the fast-growing P. annua, indicating that the differential allocation of carbon has affects on rhizosphere biology. A large rhizosphere effect on enchytraeid worms was also observed, and their potential importance in the rhizosphere is discussed.",
keywords = "Bacteria, Enchytraidae, Nematoda, Nitrogen, Rhizosphere",
author = "Griffiths, {B. S.} and R. Welschen and {van Arendonk}, {J. J.C.M.} and H. Lambers",
year = "1992",
month = "8",
day = "1",
doi = "10.1007/BF00317793",
language = "English",
volume = "91",
pages = "253--259",
journal = "Oecologia",
issn = "0029-8549",
publisher = "Springer-Verlag London Ltd.",
number = "2",

}

The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species. / Griffiths, B. S.; Welschen, R.; van Arendonk, J. J.C.M.; Lambers, H.

In: Oecologia, Vol. 91, No. 2, 01.08.1992, p. 253-259.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species

AU - Griffiths, B. S.

AU - Welschen, R.

AU - van Arendonk, J. J.C.M.

AU - Lambers, H.

PY - 1992/8/1

Y1 - 1992/8/1

N2 - Microbial growth in the rhizosphere is affected by the release of organic material from roots, so differences in carbon budgets between plants may affect their rhizosphere biology. This was tested by sampling populations of bacteria and bacteriophagous fauna from the rhizosphere of Lolium perenne, Festuca arundinacea, Poa annua, and Poa pratensis, under conditions of high and low nitrate availability. Concentrations of soluble phenolics and lignin varied considerably between the species but were not related to differences in rhizosphere biology. L. perenne and F. arundinacea supported fewer bacteria than the Poa species. There was no significant rhizosphere effect on the groups of protozoa. The major indicators of rhizosphere productivity were the bacterial-feeding nematodes (mainly Acrobeloides spp.), and there was a large positive effect of added nitrate. Nematode biomass was significantly lower in the rhizosphere of the slow-growing P. pratensis compared with the fast-growing P. annua, indicating that the differential allocation of carbon has affects on rhizosphere biology. A large rhizosphere effect on enchytraeid worms was also observed, and their potential importance in the rhizosphere is discussed.

AB - Microbial growth in the rhizosphere is affected by the release of organic material from roots, so differences in carbon budgets between plants may affect their rhizosphere biology. This was tested by sampling populations of bacteria and bacteriophagous fauna from the rhizosphere of Lolium perenne, Festuca arundinacea, Poa annua, and Poa pratensis, under conditions of high and low nitrate availability. Concentrations of soluble phenolics and lignin varied considerably between the species but were not related to differences in rhizosphere biology. L. perenne and F. arundinacea supported fewer bacteria than the Poa species. There was no significant rhizosphere effect on the groups of protozoa. The major indicators of rhizosphere productivity were the bacterial-feeding nematodes (mainly Acrobeloides spp.), and there was a large positive effect of added nitrate. Nematode biomass was significantly lower in the rhizosphere of the slow-growing P. pratensis compared with the fast-growing P. annua, indicating that the differential allocation of carbon has affects on rhizosphere biology. A large rhizosphere effect on enchytraeid worms was also observed, and their potential importance in the rhizosphere is discussed.

KW - Bacteria

KW - Enchytraidae

KW - Nematoda

KW - Nitrogen

KW - Rhizosphere

UR - http://www.scopus.com/inward/record.url?scp=0027075373&partnerID=8YFLogxK

U2 - 10.1007/BF00317793

DO - 10.1007/BF00317793

M3 - Article

VL - 91

SP - 253

EP - 259

JO - Oecologia

JF - Oecologia

SN - 0029-8549

IS - 2

ER -