Azospirillum spp. potential for maize growth and yield

Revolti, Lucas Tadeu Mazza; Caprio, Carlos Henrique; Mingotte, Fábio Luíz Checchio; Môro, Gustavo Vitti

doi:10.5897/ajb2017.16333

Cited by 11 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Just as with the previous phytohormones, gibberellins produced by PGPRs are considered as stimulators of plant growth and development. As reported by Lucas et al [78], the increase in GA3 levels in roots and boosting their growth has been related to Azospirillum strain inoculation in maize roots.…”

Section: • Gibberellinsmentioning

confidence: 57%

Rhizobia: A Promising Source of Plant Growth-Promoting Molecules and Their Non-Legume Interactions: Examining Applications and Mechanisms

Fahde¹,

Boughribil²,

Sijilmassi³

et al. 2023

Agriculture

View full text Add to dashboard Cite

For over a century, the scientific community has had a comprehensive understanding of how rhizobia can promote the growth of legumes by forming nitrogen fixing nodules. Despite this knowledge, the interaction of rhizobia with non-legumes has remained largely ignored as a subject of study until more recent decades. In the last few years, research has shown that rhizobia can also associate with non-legume roots, which ultimately leads to the stimulation of growth through diverse direct and indirect mechanisms. For example, rhizobia can enhance growth through phytohormones production, the improvement of plant nutrient uptake, such as the solubilization of precipitated phosphorus, the production of siderophores to address iron needs, and also the reduction of ethylene levels through the ACC deaminase enzyme to cope with drought stress. Additionally, rhizobia can improve, indirectly, non-legume growth through biocontrol of pathogens and the induction of systemic resistance in the host plant. It can also increase root adherence to soil by releasing exopolysaccharides, which regulate water and soil nutrient movement. The objective of this review is to assess and analyze the existing knowledge and information regarding the mechanisms through which rhizobia promote the growth of non-legumes. By conducting a comprehensive analysis of these findings, we aim to gain new insights into the development of Rhizobium/non-legume interactions.

show abstract

Section: • Gibberellinsmentioning

confidence: 57%

Rhizobia: A Promising Source of Plant Growth-Promoting Molecules and Their Non-Legume Interactions: Examining Applications and Mechanisms

Fahde¹,

Boughribil²,

Sijilmassi³

et al. 2023

Agriculture

View full text Add to dashboard Cite

show abstract

“…Although not yet elucidated, beneficial effects resulted from PGPR producing phytohormones are exerted in different plant species, such as maize (Lucas et al, 2018), rice (Lee et al, 2015), or soybean (Kang et al, 2019).…”

Section: Prominent Mechanisms Of Pgpr-mediated Alleviation Of Abiotic...mentioning

confidence: 99%

Unlocking PGPR-Mediated Abiotic Stress Tolerance: What Lies Beneath

Karamanoli

2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

In the forthcoming era of climate change and ecosystem degradation, fostering the use of beneficial microbiota in agroecosystems represents a major challenge toward sustainability. Some plant-associated bacteria, called Plant Growth Promoting Rhizobacteria (PGPR), may confer growth-promoting advantages to the plant host, through enhancing nutrient uptake, altering hormone homeostasis, and/or improving tolerance to abiotic stress factors and phytopathogens. In this regard, exploring the key ecological and evolutionary interactions between plants and their microbiomes is perquisite to develop innovative approaches and novel natural products that will complement conventional farming techniques. Recently, details of the molecular aspects of PGPR-mediated tolerance to various stress factors have come to light. At the same time the integration of the recent advances in the field of plant-microbiome crosstalk with novel -omic approaches will soon allow us to develop a holistic approach to “prime” plants against unfavorable environments. This mini review highlights the current state of the art on seed biopriming, focusing on the identification and application of novel PGPR in cultivated plant species under conditions where crop productivity is limited. The potential challenges of commercializing these PGPR as biostimulants to improve crop production under multiple environmental constraints of plant growth, as well as concerns about PGPR application and their impact on ecosystems, are also discussed.

show abstract

“…The literature review indicated that the Azospirillum spp. is associated with biological nitrogen fixation, phosphate solubilization, and plant protection against abiotic stress [10,11].…”

Section: Introductionmentioning

confidence: 99%

Azospirilla and Nitrogen Fertilization to Promote Maize Seed Development and Yield

Paula,

Franco,

Oliveira

et al. 2024

JABB

View full text Add to dashboard Cite

Aims: This study evaluated the interaction of Azospirillum brasilense (Ab) strains and nitrogen fertilizer doses on maize. Study Design: Laboratory experiment evaluated Ab strains (PCR and PTF) on maize seed germination and vigor (completely randomized design). Field experiment evaluated Ab strains and nitrogen fertilization on maize yield parameters (randomized block design). Place and Duration of Study: The germination and vigor experiment (10 days in April 2019) was implemented in a controlled environment at the Seed Analysis Laboratory of the Universidade Federal de Uberlândia, Brazil. The field experiment (137 days in winter 2019) was implemented at the Fisioplant Research Station (Uberlândia, Brazil) under commercial maize crop management. Methodology: In controlled conditions (laboratory), 200 seeds of maize (K9105VIP3, Riber KWS Seeds) were incubated (25 °C) with the Ab strain solutions for germination and vigor evaluations. In the field, 60,000 plants ha-1 (0.5 m space between sowing lines) of maize were cropped under combinations of nitrogen fertilizer and volumes of Ab strains (treatments) for leaf nitrogen, SPAD index, leaf count, fresh and dry maize shoot biomass, one-thousand grains weight, grain rows per maize ear, productivity (kg ha-1). Results: Treatment with 100 mL ha-1 of Ab PFT strain increased maize seed germination and vigor more than Ab PCR strain and control (no-inoculation or fertilizer). The number of grain rows of the 100% N + 150 mL ha-1 of Ab PFT strain and the maize shoot dry mass of the 100% N (no-inoculation) were higher than the control. The treatments did not affect the SPAD index, weight of one thousand grains, fresh maize shoot biomass, or productivity. Conclusion: Using Ab with nitrogen fertilizer is a promising strategy to improve maize crop responses; however, more studies are needed to detail the ideal management of Ab strains for maize crops and yield construction.

show abstract

Azospirillum spp. potential for maize growth and yield

Cited by 11 publications

References 52 publications

Rhizobia: A Promising Source of Plant Growth-Promoting Molecules and Their Non-Legume Interactions: Examining Applications and Mechanisms

Rhizobia: A Promising Source of Plant Growth-Promoting Molecules and Their Non-Legume Interactions: Examining Applications and Mechanisms

Unlocking PGPR-Mediated Abiotic Stress Tolerance: What Lies Beneath

Azospirilla and Nitrogen Fertilization to Promote Maize Seed Development and Yield

Contact Info

Product

Resources

About