Potential of plant growth-promoting rhizobacteria to improve crop productivity and adaptation to a changing climate

Abstract

Abiotic and biotic stresses negatively affect the growth and yield of crops worldwide. It is estimated that abiotic and biotic stresses account for global food crop losses of 50% and 30%, respectively. With the rapidly growing world population expected to reach 10 billion by 2050, the issue of food security is becoming a global concern. Climate change, which has its roots in industrialization, urbanization, and agricultural activities, further exacerbates food crop losses. Various innovative agricultural technologies, such as stress-tolerant varieties, smart irrigation systems, and shifting cropping calendars, have been used to both increase crop productivity and mitigate the effects of various stresses, but most of these strategies are time-intensive and costly. Therefore, strategies that are both sustainable and environmentally friendly, as well as economical, are required to face the challenge of providing the world’s human population with adequate food. In this context, plant growth-promoting rhizobacteria (PGPR) have the potential to increase crop productivity by mitigating the effects of various abiotic and biotic stresses associated with climate change. This approach can also improve the sustainability of agroecosystems by reducing the use of unsustainable agrochemicals, which contribute to greenhouse gas emissions. This review presents current information on how PGPR can mitigate the impacts of abiotic and biotic stresses, associated with climate change, food security, as well as the mechanisms underlying PGPR-induced tolerance to these stresses.

Comparative Transcriptome Profiling Provides Insights into the Growth Promotion Activity ofPseudomonas fluorescensstrain SLU99 in Tomato and Potato Plants

“…Intriguingly, although all four strains isolated from tomato rhizospheres are favorable to potato yield, only SLU99 is significantly beneficial to tomato yield. Previous research found that bacterial consortiums aid plant growth by enhancing stress tolerance (Silambarasan et al, 2019; Yang et al, 2021; Kelbessa et al, 2023). Recently, results from our group demonstrated that SLU99 is compatible with strains EV23 and AV10 (Kelbessa et al, 2022), implying that these bacteria could co-exist as a consortium in the rhizosphere.…”

Comparative transcriptome profiling provides insights into the growth promotion activity of Pseudomonas fluorescens strain SLU99 in tomato and potato plants

“…Intriguingly, although all four strains are favorable to potato yield, only SLU99 is significantly beneficial to tomato yield. Previous research found that bacterial consortiums aid plant growth by enhancing stress tolerance ( Silambarasan et al., 2019 ; Yang et al., 2021 ; Kelbessa et al., 2023 ). Recently, results from our group demonstrated that SLU99 is compatible with strains EV23 and AV10 ( Kelbessa et al., 2022 ), implying that these bacteria could co-exist as a consortium in the rhizosphere.…”

The Effect of Climate Change and Sustainable Agricultural Practices on Productivity and Food Security in Rural Areas in East Java

“…Moreover, the economic ramifications of climate-induced crop failures can hinder the purchasing power of rural communities, affecting food utilization [27]. Addressing these interconnected dimensions is vital for formulating comprehensive strategies to safeguard food security in the face of a changing climate [28].…”

“…The negative impact of climate change on food security is well-documented in the literature [13], [28], [31], [32]. Agricultural systems are highly vulnerable to changing climatic conditions, which can lead to decreased crop productivity and increased food insecurity [33].…”