Rhizobium Presence and Functions in Microbiomes of Non-leguminous Plants

Díez-Méndez, Alexandra; Menéndez, Esther

doi:10.1007/978-3-030-51916-2_16

Cited by 12 publications

(5 citation statements)

References 1,216 publications

(1,712 reference statements)

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“…Rhizobium can be found in the rhizosphere, endosphere, and phyllosphere of non-leguminous crops, according to D‫ם‬ez M‫י‬ndez and Men‫י‬ndez. 57 Regardless, cotton Rhizobium inoculation has been seldom documented in the literature. Romero-Perdomo et al 58 found that Rhizobium was the sole bacterium that positively impacted cotton development in soils deficient in phosphorus.…”

Section: Discussionmentioning

confidence: 99%

Regulating Cotton Growth via Rhizobium Species

Sultana,

Pindi

2024

J. Pure Appl. Microbiol.

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Unpredictable precipitation is a common problem for plant growth in India’s Deccan plateau, which is known for its poor soil and frequent droughts. Critical to the regulation of plant diseases and the enhancement of plant growth are root-colonizing rhizobacteria like Rhizobium. Isolating productive Rhizobium species from soil around the Eturnagram region’s cotton rhizosphere was the goal of a study carried out at Palamuru University. Rhizobium variant-5, currently known as Rhizobium sp. PKS [NCBI-OK663003, NCMR-MCC4960], was one of five different strains of Rhizobium isolated using the top layer method. It showed strong support for the growth of six different cotton cultivars. Out of the six cotton varieties tested, the Mahyco cultivar had the lowest proline levels while having higher amounts of IAA, proteins, chlorophyll, and sugars. The effectiveness of Mahyco was confirmed by experimental field testing conducted in four distinct cotton agricultural soils of Mahabubnagar District using Rhizobium sp. PKS [NCBI-OK663003, NCMR-MCC4960]. Deep black soil showed improved phytohormone synthesis and good biochemical alterations, whereas shallow black soil showed that the strains considerably enhanced plant development. Based on these results, the novel Rhizobium sp. PKS could be used as a bioinoculant in cotton fields on the Deccan plateau, which could improve agricultural yields despite the harsh conditions.

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Section: Discussionmentioning

confidence: 99%

Regulating Cotton Growth via Rhizobium Species

Sultana,

Pindi

2024

J. Pure Appl. Microbiol.

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“…6 and 7). Rhizobium, an important genre upregulated in the tolerant species, is a wellknown nitrogen-xer [49] and explains the high growth rate of G. arboreum than G, hirsutum. Methylophilus, another bacterial genre upregulated in G. arboreum, has been documented to play a signi cant role in plant growth promotion by utilizing reduced carbon compounds [50], along with Rhizobiales, that are extensively researched partners of plants, often offering valuable contributions to their hosts.…”

Section: Discussionmentioning

confidence: 99%

Cotton Leaf Curl Disease Suppression by Interspecies Microbiome Transplantation

Badar,

Aqueel,

Nawaz

et al. 2023

Preprint

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Background Begomovirus, the causative agent of the Cotton Leaf Curl Disease (CLCuD), has been corrupting cotton yield, quality, and production throughout the world since its first outbreak in 1912. The cotton crop, the “white gold” of Pakistan, has been plucked by various biotic stresses including Cotton Leaf Curl Virus (CLCuV), amounting the production loss of the crop to almost half in the past ten years. Although several breeding attempts have been made to develop cotton lines tolerant to CLCuD, the mutation rate of CLCuV remains too high to allow permanent tolerance to any developed cultivar. In this study, the plant microbiome is proposed as a favorable environmental and economy friendly alternative to induce CLCuD suppression in the CLCuD-susceptible specie Gossypium hirsutum. The study employed the microbiome of the naturally immune diploid species of cotton, Gossypium arboreum, as a hub of diverse bacterial community. Both the rhizospheric and phyllospheric microbiotas of G. hirsutum (PFV1 and PFV2) and G. arboreum (FDH228) species with varying tolerance levels to CLCuD were isolated. The rhizospheric and phyllospheric microbiotas were termed as Microbial Fractions (MFs) and were transplanted to young G. hirsutum and G. arboreum seedlings, with null microbiota development, through soil drench method. Salicylic Acid (SA), a known plant phytohormone with defense-inducing properties, was also applied to a positive control group through foliar spray method. Results Most prominent CLCuD suppression was recorded through disease incidence assays in G. hirsutum varieties transplanted with rhizospheric MFs successively from FDH228 (RMF), PFV1 (pRMF) and PFV2 (SMF). The phyllospheric MFs also suppressed CLCuD but to a lesser extent as compared to rhizospheric MFs. The findings laid by disease incidence assays have been further supported with Illumina MiSeq 16S rRNA gene sequence analysis for microbial diversity of the MF samples and corresponding associated pathways. The results strongly demonstrate distinct bacteriomes of the cotton species governed by relative CLCuD tolerance levels. Conclusions A strong practical foundation is laid to present the role of plant microbiome in CLCuD suppression and remains the first attempt to elucidate this against a viral disease. Microbiome transplantation can contribute to the advancement of sustainable agriculture.

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“…Rhizobium bacteria form a symbiotic relationship with roots of legume crop that results in N fixation, as well as increased uptake of P and macronutrients by the plant and reduced impact of stress factors ( Nadeem et al., 2009 ). Symbiotic bacteria may also promote plant growth by supplying additional N through atmospheric N 2 fixation, producing phytohormones (auxins, cytokinins, and gibberellins), and releasing anti-microbial molecules to shield crops from diseases ( Afkhami et al., 2021 ; Akinola and Babalola, 2020 ; Barka et al., 2016 ; Díez-Méndez and Menéndez, 2021 ; Flores-Félix et al., 2019 ; Khan, 2005 ; Lindstrom and Mousavi, 2019 ; Menendez and Paço, 2020 ; Mupambwa et al., 2018 ; Murali et al., 2021 ; Siqueira et al., 2020 ). In the past, farmers have widely used earthworms and organic fertilizers to boost soil productivity ( Rashid et al., 2013 , 2014a , 2014b , 2016 ; Shah et al., 2013 ), and these practices have proven to be beneficial to agro-ecosystems.…”

Section: Importance Of Microbial Community To Soil Fertility and Sustainabilitymentioning

confidence: 99%

High-throughput molecular technologies for unraveling the mystery of soil microbial community: challenges and future prospects

Lahlali

Ibrahim

Belabess

et al. 2021

Heliyon

Self Cite

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Soil microbial communities play a crucial role in soil fertility, sustainability, and plant health. However, intensive agriculture with increasing chemical inputs and changing environments have influenced native soil microbial communities. Approaches have been developed to study the structure, diversity, and activity of soil microbes to better understand the biology and plant-microbe interactions in soils. Unfortunately, a good understanding of soil microbial community remains a challenge due to the complexity of community composition, interactions of the soil environment, and limitations of technologies, especially related to the functionality of some taxa rarely detected using conventional techniques. Culture-based methods have been shown unable and sometimes are biased for assessing soil microbial communities. To gain further knowledge, culture-independent methods relying on direct analysis of nucleic acids, proteins, and lipids are worth exploring. In recent years, metagenomics, metaproteomics, metatranscriptomics, and proteogenomics have been increasingly used in studying microbial ecology. In this review, we examined the importance of microbial community to soil quality, the mystery of rhizosphere and plant-microbe interactions, and the biodiversity and multi-trophic interactions that influence the soil structure and functionality. The impact of the cropping system and climate change on the soil microbial community was also explored. Importantly, progresses in molecular biology, especially in the development of high-throughput biotechnological tools, were extensively assessed for potential uses to decipher the diversity and dynamics of soil microbial communities, with the highlighted advantages/limitations.

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Rhizobium Presence and Functions in Microbiomes of Non-leguminous Plants

Cited by 12 publications

References 1,216 publications

Regulating Cotton Growth via Rhizobium Species

Regulating Cotton Growth via Rhizobium Species

Cotton Leaf Curl Disease Suppression by Interspecies Microbiome Transplantation

High-throughput molecular technologies for unraveling the mystery of soil microbial community: challenges and future prospects

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