Plant–Microbe Interaction 2017—The Good, the Bad and the Diverse

Schirawski, Jan; Perlin, Michael H.

doi:10.3390/ijms19051374

Cited by 114 publications

(51 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Soils with high salinity levels interfere with plants' physiological process. The high salt concentration adversely affects important soil processes such as respiration, residue decomposition, nitrification, denitrification, soil biodiversity and microbial activity (Schirawski and Perlin, 2018). The loss of crop productivity and high salinity is also noticed where fertilizer input is too high in soil (Rütting et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

et al. 2019

View full text Add to dashboard Cite

Soil salinity has emerged as a serious issue for global food security. It is estimated that currently about 62 million hectares or 20 percent of the world's irrigated land is affected by salinity. The deposition of an excess amount of soluble salt in cultivable land directly affects crop yields. The uptake of high amount of salt inhibits diverse physiological and metabolic processes of plants even impacting their survival. The conventional methods of reclamation of saline soil which involve scraping, flushing, leaching or adding an amendment (e.g., gypsum, CaCl 2 , etc.) are of limited success and also adversely affect the agro-ecosystems. In this context, developing sustainable methods which increase the productivity of saline soil without harming the environment are necessary. Since long, breeding of salt-tolerant plants and development of salt-resistant crop varieties have also been tried, but these and aforesaid conventional approaches are not able to solve the problem. Salt tolerance and dependence are the characteristics of some microbes. Salt-tolerant microbes can survive in osmotic and ionic stress. Various genera of salt-tolerant plant growth promoting rhizobacteria (ST-PGPR) have been isolated from extreme alkaline, saline, and sodic soils. Many of them are also known to mitigate various biotic and abiotic stresses in plants. In the last few years, potential PGPR enhancing the productivity of plants facing salt-stress have been researched upon suggesting that ST-PGPR can be exploited for the reclamation of saline agro-ecosystems. In this review, ST-PGPR and their potential in enhancing the productivity of saline agro-ecosystems will be discussed. Apart from this, PGPR mediated mechanisms of salt tolerance in different crop plants and future research trends of using ST-PGPR for reclamation of saline soils will also be highlighted.

show abstract

Section: Introductionmentioning

confidence: 99%

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Selenium deficiency induces heart and joint related diseases, such as endemic cardiomyopathy and arthritis that have been 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 3 altering the availability of chemical elements for plants. Interactions between plants and microorganisms take place during different phases of the plant life cycle and many of these interactions can be beneficial for the plant (Schirawski and Perlin 2018). In fact, there are multiple interactions where the plant benefits either directly or indirectly of the associated microbes.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, there are multiple interactions where the plant benefits either directly or indirectly of the associated microbes. Further, plants may act as protected habitats for bacteria occupying the surfaces of the plant, the apoplast or the soil surrounding the plant roots (Schirawski and Perlin 2018). In addition, plants may release compounds attracting the accompanying soil bacteria and the associated microbes may in turn secrete compounds that favour e.g.…”

Section: Introductionmentioning

confidence: 99%

The reduction of selenium(IV) by boreal Pseudomonas sp. strain T5-6-I – Effects on selenium(IV) uptake in Brassica oleracea

Lusa

Help

Honkanen

et al. 2019

Environmental Research

View full text Add to dashboard Cite

Selenium (Se) is an essential micronutrient but toxic when taken in excessive amounts. Therefore, understanding the metabolic processes related to selenium uptake and bacteria-plant interactions coupled with selenium metabolism are of high importance. We cultivated Brassica oleracea with the previously isolated heterotrophic aerobic Se(IV)-reducing Pseudomonas sp. T5-6-I strain to better understand the phenomena of bacteria-mediated Se(IV) reduction on selenium availability to the plants. B. oleracea grown on Murashige and Skoog medium (MS-salt agar) with and without of Pseudomonas sp. were amended with Se(IV)/ 75 Se(IV), and selenium transfer into plants was studied using autoradiography and gamma spectroscopy. XANES was in addition used to study the speciation of selenium in the B. oleracea plants. In addition, the effects of Se(IV) on the protein expression in B. oleracea was studied using HPLC-SEC. TEM and confocal microscopy were used to follow the bacterial/Se-aggregate accumulation in plants and the effects of bacterial inoculation on root-hair growth. In the tests using 75 Se(IV) on average 130% more selenium was translocated to the B. oleracea plants grown with Pseudomonas sp. compared to the plants grown with selenium, but without Pseudomonas sp.. In addition, these bacteria notably increased root hair density. Changes in the protein expression of B. oleracea were observed on the ~30 -58 kDa regions in the Se(IV) treated samples, probably connected e.g. to the oxidative stress induced by Se(IV) or expression of proteins connected to the Se(IV) metabolism. Based on the XANES measurements, selenium appears to accumulate in B. oleracea mainly in organic C-Se-H and C-Se-C bonds with and without bacteria inoculation. We conclude that the Pseudomonas sp. T5-6-I strain seems to contribute positively to the selenium accumulation in plants, establishing the high potential of Se 0 -producing bacteria in the use of phytoremediation and biofortification of selenium.

show abstract

“…Plant organs interact with microorganisms during all its phenological development, sculpting complex microbial assemblages within plant's phyllosphere, rhizosphere, and endosphere (Hassani et al 2018). These interactions have undergone selection pressure over the years, which has effectively shaped, not only plant's microbial communities, but also plant's fitness (Hassani et al 2018, Thrall et al 2007 and metabolism.These kinds of interactions are fundamental for terrestrial ecosystems , since they define plant´s growth, stress tolerance (Schiarwski et al 2018) and metabolite production (Agrawal et al 2018). Moreover, bacteria may affect plants in a beneficial, harmful or neutral way (Brimecombe et al 2007).…”

Section: Microbe-plant Interactionmentioning

confidence: 99%

Bacteria-Plant interactions: an added value of microbial inoculation

Ogata-Gutiérrez

Zúñiga-Dávila

2020

Rev peru biol

View full text Add to dashboard Cite

High world population and the increase in global food demands results in an indiscriminate use of chemical fertilizers by farmers, causing soil deterioration and other environmental problems. In recent years there has been a collective concern to preserve the environment through sustainable and environmentally friendly techniques. Plant growth-promoting bacteria (PGPB) are widely known to benefit plants in a sustainable manner, reducing chemical fertilizers application. Many studies have shown that these bacteria not only improve crop yields but also its quality, increasing certain nutrients and molecules that are important for human health such as aminoacids, proteins, vitamins, flavonoids, antioxidants, essential oils, among others. This work compiles recent information of PGPB as an alternative of chemical fertilizer for improving crop yields and plant metabolites production.

show abstract

Plant–Microbe Interaction 2017—The Good, the Bad and the Diverse

Cited by 114 publications

References 14 publications

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

The reduction of selenium(IV) by boreal Pseudomonas sp. strain T5-6-I – Effects on selenium(IV) uptake in Brassica oleracea

Bacteria-Plant interactions: an added value of microbial inoculation

Contact Info

Product

Resources

About