Journal ArticleDOI
Plant growth promoting rhizobacteria as biofertilizers
TLDR
This review focuses on the known, the putative, and the speculative modes-of-action of PGPR, which include fixing N2, increasing the availability of nutrients in the rhizosphere, positively influencing root growth and morphology, and promoting other beneficial plant–microbe symbioses.Abstract:
Numerous species of soil bacteria which flourish in the rhizosphere of plants, but which may grow in, on, or around plant tissues, stimulate plant growth by a plethora of mechanisms. These bacteria are collectively known as PGPR (plant growth promoting rhizobacteria). The search for PGPR and investigation of their modes of action are increasing at a rapid pace as efforts are made to exploit them commercially as biofertilizers. After an initial clarification of the term biofertilizers and the nature of associations between PGPR and plants (i.e., endophytic versus rhizospheric), this review focuses on the known, the putative, and the speculative modes-of-action of PGPR. These modes of action include fixing N2, increasing the availability of nutrients in the rhizosphere, positively influencing root growth and morphology, and promoting other beneficial plant–microbe symbioses. The combination of these modes of actions in PGPR is also addressed, as well as the challenges facing the more widespread utilization of PGPR as biofertilizers.read more
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Journal ArticleDOI
Applications of New Rhizobacteria Pseudomonas Isolates in Agroecology via Fundamental Processes Complementing Plant Growth.
Redouan Qessaoui,Rachid Bouharroud,James Nicholas Furze,M. El Aalaoui,H. Akroud,Abderrahim Amarraque,J. Van Vaerenbergh,Rachid Tahzima,El Hassan Mayad,Bouchra Chebli +9 more
TL;DR: The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants.
Journal ArticleDOI
The role of microorganisms in achieving the sustainable development goals
TL;DR: In this paper, a review of the integration of microbial technology for the achievement of sustainable development goals is put forth, where the scope of the use of microorganisms, points of their control, methods for their better utilization and the role of education in achieving these targets are discussed.
Journal ArticleDOI
Plant hydraulic lift of soil water – implications for crop production and land restoration
Hans-Holger Liste,Jason C. White +1 more
TL;DR: In this article, the authors discuss potential practical application of hydraulically lifted water for crop production, land restoration, and soil phytoremediation, as well as the potential application of hydraulic lift for soil fauna and soil microorganisms.
Journal ArticleDOI
Root symbionts: Powerful drivers of plant above- and belowground indirect defenses.
TL;DR: The main features and effects of soil microbial mutualists of plants on plant indirect defenses are illustrated and possible applications within the framework of sustainable crop protection against root‐ and shoot‐feeding arthropod pests are discussed.
Journal ArticleDOI
Bacterial and Yeast Endophytes from Poplar and Willow Promote Growth in Crop Plants and Grasses
TL;DR: It is found that inoculated plants not only had better viability and earlier flowering and fruiting, they also had increased plant growth and fruit yields when grown in nitrogen-limited soil.
References
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Journal ArticleDOI
Phosphate solubilizing bacteria and their role in plant growth promotion
Hilda Rodríguez,Reynaldo Fraga +1 more
TL;DR: Genetic manipulation of phosphate-solubilizing bacteria to improve their ability to improve plant growth may include cloning genes involved in both mineral and organic phosphate solubilization, followed by their expression in selected rhizobacterial strains.
Journal ArticleDOI
The enhancement of plant growth by free-living bacteria
TL;DR: The ways in which plant growth promoting rhizobacteria facilitate the growth of plants are considered and discussed and the possibility of improving plant growth promotion by specific genetic manipulation is critically examined.
Journal ArticleDOI
Microbial interactions and biocontrol in the rhizosphere
TL;DR: Multiple microbial interactions involving bacteria and fungi in the rhizosphere are shown to provide enhanced biocontrol in many cases in comparison with biocOntrol agents used singly.
Journal ArticleDOI
Soil Fertility and Fertilizers
TL;DR: Soil fertility and fertilizers, Soil fertility, fertilizers and soil fertility and fertility, this paper, soil fertility, soil fertility, fertility, and fertilization, etc.
Journal ArticleDOI
A Model For the Lowering of Plant Ethylene Concentrations by Plant Growth-promoting Bacteria
TL;DR: It is argued that the simplest explanation for the observed biological activity of plant growth promoting rhizobacteria relates to the relative amounts of 1-aminocyclopropane-1-carboxylate deaminase and 1-amino-2-car boxylate oxidase in the system under consideration.
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