Methods of collection of plant root exudates in relation to plant metabolism and purpose: A review

2013 ◽  
Vol 176 (2) ◽  
pp. 175-199 ◽  
Author(s):  
Valerie Vranova ◽  
Klement Rejsek ◽  
Keith R. Skene ◽  
Dalibor Janous ◽  
Pavel Formanek
Keyword(s):  
Root Exudates ◽  
Plant Root ◽  
Plant Metabolism

The Effect of Tryptophan Present in Plant Root Exudates on the Phytostimulating Activity of Rhizobacteria

Microbiology ◽  
2004 ◽  
Vol 73 (2) ◽  
pp. 156-158 ◽  
Author(s):  
L. V. Kravchenko ◽  
T. S. Azarova ◽  
N. M. Makarova ◽  
I. A. Tikhonovich
Keyword(s):  
Root Exudates ◽  
Plant Root

Plant Root Exudates as Determinant of Rhizomicrobiome

2020 ◽  
pp. 105-126
Author(s):  
V. Balasubramanian ◽  
Arunima Sur ◽  
Kush Kumar Nayak ◽  
Ravi Kant Singh
Keyword(s):  
Root Exudates ◽  
Plant Root

In vitro studies on the behaviour of second-stage juveniles of Heterodera schachtii (Nematoda: Heteroderidae) in response to host plant root exudates

Parasitology ◽  
1991 ◽  
Vol 103 (1) ◽  
pp. 149-155 ◽  
Author(s):  
F. Grundler ◽  
L. Schnibbe ◽  
U. Wyss
Keyword(s):  
Root Exudates ◽  
Root Exudate ◽  
Plant Root ◽  
Time Lapse ◽  
Heterodera Schachtii ◽  
Second Stage ◽  
Video Recordings ◽  
Aseptic Conditions ◽  
Agarose Layer

The behaviour of Heterodera schachtii second-stage juveniles in response to mustard (Sinapis alba) rooxudates was observed and analysed under aseptic conditions in a standardized bioassay. Aggregation of juveniles on an agarose layer occurred within less than 30 min in the area where root exudates had been applied and persisted for several hours. Analysis of time-lapse video recordings showed that the aggregation did not result from a directed orientation of the juvenile towards the root exudate. This was supported by an orientation assay using single juveniles. Aggregated juveniles showed pre-infection exploratory behaviour, including stylet thrusting and head-end bending, while staying at rest for several minutes.

The arbuscular mycorrhizal host status of plants can not be linked with the Striga seed-germination-activity of plant root exudates

2009 ◽  
Vol 116 (2) ◽  
pp. 86-89 ◽  
Author(s):  
V. Lendzemo ◽  
T. W. Kuyper ◽  
A. Urban ◽  
G. Vegvari ◽  
M. Puschenreiter ◽  
...  
Keyword(s):  
Seed Germination ◽  
Root Exudates ◽  
Plant Root ◽  
Arbuscular Mycorrhizal ◽  
Host Status

Effects of antibiotics on microbial community structure and microbial functions in constructed wetlands treated with artificial root exudates

2020 ◽  
Vol 22 (1) ◽  
pp. 217-226 ◽  
Author(s):  
Xin-nan Tong ◽  
Xin-ze Wang ◽  
Xiao-juan He ◽  
Zhe Wang ◽  
Wen-xuan Li
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Constructed Wetlands ◽  
Root Exudates ◽  
Microbial Community Structure ◽  
Plant Root

In the rhizosphere, plant root exudates can mediate the toxicity of antibiotics on microorganisms, yet the mechanisms are poorly understood.

scholarly journals The Biocontrol Agent and Insect Pathogen Photorhabdus luminescens Interacts with Plant Roots

2020 ◽  
Vol 86 (17) ◽  
Author(s):  
Alice Regaiolo ◽  
Nazzareno Dominelli ◽  
Karsten Andresen ◽  
Ralf Heermann
Keyword(s):  
Biological Control ◽  
Pest Management ◽  
Root Exudates ◽  
Biological Control Agent ◽  
Plant Root ◽  
Specific Interaction ◽  
Plant Roots ◽  
Photorhabdus Luminescens ◽  
Content Type ◽  
Root Interactions

ABSTRACT The number of sustainable agriculture techniques to improve pest management and environmental safety is rising, as biological control agents are used to enhance disease resistance and abiotic stress tolerance in crops. Here, we investigated the capacity of the Photorhabdus luminescens secondary variant to react to plant root exudates and their behavior toward microorganisms in the rhizosphere. P. luminescens is known to live in symbiosis with entomopathogenic nematodes (EPNs) and to be highly pathogenic toward insects. The P. luminescens-EPN relationship has been widely studied, and this combination has been used as a biological control agent; however, not much attention has been paid to the putative lifestyle of P. luminescens in the rhizosphere. We performed transcriptome analysis to show how P. luminescens responds to plant root exudates. The analysis highlighted genes involved in chitin degradation, biofilm regulation, formation of flagella, and type VI secretion system. Furthermore, we provide evidence that P. luminescens can inhibit growth of phytopathogenic fungi. Finally, we demonstrated a specific interaction of P. luminescens with plant roots. Understanding the role and the function of this bacterium in the rhizosphere might accelerate the progress in biocontrol manipulation and elucidate the peculiar mechanisms adopted by plant growth-promoting rhizobacteria in plant root interactions. IMPORTANCE Insect-pathogenic Photorhabdus luminescens bacteria are widely used in biocontrol strategies against pests. Very little is known about the life of these bacteria in the rhizosphere. Here, we show that P. luminescens can specifically react to and interact with plant roots. Understanding the adaptation of P. luminescens in the rhizosphere is highly important for the biotechnological application of entomopathogenic bacteria and could improve future sustainable pest management in agriculture.

Rhizosphere interactions: root exudates, microbes, and microbial communities

Botany ◽  
2014 ◽  
Vol 92 (4) ◽  
pp. 267-275 ◽  
Author(s):  
Xing-Feng Huang ◽  
Jacqueline M. Chaparro ◽  
Kenneth F. Reardon ◽  
Ruifu Zhang ◽  
Qirong Shen ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Root Exudates ◽  
Root Exudate ◽  
Management Practices ◽  
Plant Root ◽  
Agricultural Practices ◽  
Rhizosphere Interactions ◽  
Broad Variety ◽  
Sustainable Agricultural Practices ◽  
Made In

The study of the interactions between plants and their microbial communities in the rhizosphere is important for developing sustainable management practices and agricultural products such as biofertilizers and biopesticides. Plant roots release a broad variety of chemical compounds to attract and select microorganisms in the rhizosphere. In turn, these plant-associated microorganisms, via different mechanisms, influence plant health and growth. In this review, we summarize recent progress made in unraveling the interactions between plants and rhizosphere microbes through plant root exudates, focusing on how root exudate compounds mediate rhizospheric interactions both at the plant–microbe and plant–microbiome levels. We also discuss the potential of root exudates for harnessing rhizospheric interactions with microbes that could lead to sustainable agricultural practices.

scholarly journals Plant root exudates increase methane emissions through direct and indirect pathways

2019 ◽  
Vol 145 (1-2) ◽  
pp. 213-234 ◽  
Author(s):  
Nicholas B. Waldo ◽  
Brianna K. Hunt ◽  
Eleanor C. Fadely ◽  
James J. Moran ◽  
Rebecca B. Neumann
Keyword(s):  
Root Exudates ◽  
Plant Root ◽  
Methane Emissions
Sign in / Sign up

Export Citation Format

Share Document