Complete genome of Sphingomonas paucimobilis ZJSH1, an endophytic bacterium from Dendrobium officinale with stress resistance and growth promotion potential

Li, Jin; Wu, Hongxia; Qian, Pu; Zhang, Chu; Chen, Ying; Lin, Zhengxin; Hu, Xiufang; Ou, Li

doi:10.1007/s00203-023-03459-2

Cited by 12 publications

(11 citation statements)

References 56 publications

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“…The presence of these bacteria genera in PPT soils and maize-roots implies that PPT positively in uences below-ground microbial populations compared to Mono. Similar ndings have been observed in various other cropping systems, including long-term intercropping systems, push-pull experimental plots, multiple cropping systems, crop rotation, and cover cropping [7], [8], [31], [79]. Nitrospira were found more in PPT, and these types of bacteria are capable of carrying out nitri cation, which involves the oxidation of ammonia in a single organism [3], [22], [25], [85].…”

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...supporting

confidence: 72%

“…can act as biocontrol agents for bacterial leaf spots and promote plant growth. Similar observations in the enrichment of bacteria genera have been made on long-term intercropping systems; PPT experimental plots, multiple cropping systems, crop rotation, and cover cropping [7], [8], [79].…”

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...supporting

confidence: 71%

“…Soil and maize-root microbiome diversity in uenced by push-pull and maize-monoculture cropping systems While annual legume intercropping may temporarily affect belowground microbiome pro les, the impact of companion crop intercrops (Desmodium spp.) is expected to be stronger and more resilient, contributing to increased soil and maize-root microbial diversity [3], [79], [127]. Hence, we argue that the higher beta diversity of microbial communities in long-term push-pull compared to Mono cropping systems for both soil and maize-root bacterial and fungal populations could result from the baseline differences in the two cropping systems.…”

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...mentioning

confidence: 99%

“…Interestingly, it contributes to the sulfur cycle and promotes plant growth and health in ecosystems [84], [91]. Sphingomonas paucimobilis enhances antioxidant activity, promotes plant growth, and exhibits biodegradation capabilities [79], [92], [93]. Ralstonia pickettii demonstrates biodegradative abilities through siderophore production, while Pseudomonas nitroreducens produce biosurfactants and solubilizes phosphate [94]- [96].…”

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...mentioning

confidence: 99%

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Long-term Push-pull Cropping System Shifts Rhizosphere and Maize-root Microbiome Diversity Paving Way To Resilient Farming System

Jalloh,

Khamis,

Yusuf

et al. 2023

Preprint

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Background: The rhizosphere biota consists of a complex assembly of microbial communities and other organisms that vary significantly across farming systems and influence soil health and plant productivity. How different cropping systems manipulates soil and plant microbiomes is little understood. In this study, we investigated soil physicochemical properties, rhizosphere and maize-root microbiomes in an agroecological cereal-legume companion cropping system known as push-pull technology (PPT) which has been in use in farmer fields for over two decades for insect-pest management, soil health improvement, and weed control in sub-Saharan Africa. We compared this with the maize-monoculture (Mono) cropping system. Results: PPT cropping system positively impacted the abundance and diversity of soil and maize-root microbial communities and influenced soil physicochemical characteristics compared to Mono. Specific genera of both bacterial and fungal communities drove the variation in diversity of the microbial communities in these cropping systems. Soil and maize-root from the PPT cropping system had enriched Trichoderma, Mortierella, and Bionectria fungal genera while Streptomyces, RB41, and Nitrospira, among other bacterial genera linked to essential ecosystem services like plant protection, decomposition, carbon utilization, production of bioinsecticides, nitrogen fixation, nematode suppression, phytohormone production, and bioremediation. Bacterial from the genus Bryobacter linked to plant pathogenesis was more abundant in Mono-root. Similarly, fungal genera such as Gibberella, Neocosmospora, and Aspergillus, linked to plant pathogenesis and food contamination, were abundant in Mono. Notable differences were observed in the overall diversity of metabiome functional protein pathways, such as syringate degradation, L-methionine biosynthesis I, and inosine 5'-phosphate degradation. Conclusion: Push-pull cropping system improves soil physicochemical properties and shifts soil and maize-root microbiomes in farmer fields in favour of microbial communities involved in important ecological services. The current findings add to the diversification of ecosystem services provided by this cropping system where it is practiced and contributes to the system’s resilience and functional redundancy. Underpinning the mechanism through PPT affects the soil and maize-root microbial communities – whether it is through the influence of plant metabolites from the intercrop root exudates or is the alteration of the soil nutritional status which affects microbial enzymatic activities should be the future focus.

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Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...supporting

confidence: 72%

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...supporting

confidence: 71%

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...mentioning

confidence: 99%

Section: Effect and Role Of Push-pull Cropping System On Soil And Mai...mentioning

confidence: 99%

See 2 more Smart Citations

Long-term Push-pull Cropping System Shifts Rhizosphere and Maize-root Microbiome Diversity Paving Way To Resilient Farming System

Jalloh,

Khamis,

Yusuf

et al. 2023

Preprint

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show abstract

“…Recently, Endostemon obtusifolius plant inoculated with Paenibacillus polymyxa and Fusarium oxysporum showed enhanced drought tolerance ( Ogbe et al., 2023 ). In other studies Streptomyces dioscori SF1 strain enhanced drought, salinity and phytopathogen resistance in Glycyrrhiza uralensis via the production of ammonia, IAA, enzyme activities, potassium solubilization, nitrogen fixation and Sphingomonas paucimobilis ZJSH1 strain ameliorate drought, salt, and heavy metal toxicity in Dendrobium officinale plants ( Li X. et al., 2023 ; Li J. et al., 2023 ). Fungal endophytes, Acrocalymma aquatic and Alternaria alstroemeriae provide tolerance against drought-induced damage in Isatis indigotica simply because of synergistic effects on soil enzymatic activity, soil organic material, the biomass of roots, as well as epigoitrin levels ( Li W. et al., 2023 ).…”

Section: Endophytes-mediated Plant-microbe Interactions To Mitigate E...mentioning

confidence: 91%

Deciphering the mechanisms, hormonal signaling, and potential applications of endophytic microbes to mediate stress tolerance in medicinal plants

Pandey,

Tripathi,

Dwivedi

et al. 2023

Front. Plant Sci.

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The global healthcare market in the post-pandemic era emphasizes a constant pursuit of therapeutic, adaptogenic, and immune booster drugs. Medicinal plants are the only natural resource to meet this by supplying an array of bioactive secondary metabolites in an economic, greener and sustainable manner. Driven by the thrust in demand for natural immunity imparting nutraceutical and life-saving plant-derived drugs, the acreage for commercial cultivation of medicinal plants has dramatically increased in recent years. Limited resources of land and water, low productivity, poor soil fertility coupled with climate change, and biotic (bacteria, fungi, insects, viruses, nematodes) and abiotic (temperature, drought, salinity, waterlogging, and metal toxicity) stress necessitate medicinal plant productivity enhancement through sustainable strategies. Plants evolved intricate physiological (membrane integrity, organelle structural changes, osmotic adjustments, cell and tissue survival, reclamation, increased root-shoot ratio, antibiosis, hypersensitivity, etc.), biochemical (phytohormones synthesis, proline, protein levels, antioxidant enzymes accumulation, ion exclusion, generation of heat-shock proteins, synthesis of allelochemicals. etc.), and cellular (sensing of stress signals, signaling pathways, modulating expression of stress-responsive genes and proteins, etc.) mechanisms to combat stresses. Endophytes, colonizing in different plant tissues, synthesize novel bioactive compounds that medicinal plants can harness to mitigate environmental cues, thus making the agroecosystems self-sufficient toward green and sustainable approaches. Medicinal plants with a host set of metabolites and endophytes with another set of secondary metabolites interact in a highly complex manner involving adaptive mechanisms, including appropriate cellular responses triggered by stimuli received from the sensors situated on the cytoplasm and transmitting signals to the transcriptional machinery in the nucleus to withstand a stressful environment effectively. Signaling pathways serve as a crucial nexus for sensing stress and establishing plants’ proper molecular and cellular responses. However, the underlying mechanisms and critical signaling pathways triggered by endophytic microbes are meager. This review comprehends the diversity of endophytes in medicinal plants and endophyte-mediated plant-microbe interactions for biotic and abiotic stress tolerance in medicinal plants by understanding complex adaptive physiological mechanisms and signaling cascades involving defined molecular and cellular responses. Leveraging this knowledge, researchers can design specific microbial formulations that optimize plant health, increase nutrient uptake, boost crop yields, and support a resilient, sustainable agricultural system.

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Impact of plant growth-promoting rhizobacteria (PGPR) on plant nutrition and root characteristics: Current perspective

Khoso,

Wagan,

Alam

et al. 2024

Plant Stress

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Complete genome of Sphingomonas paucimobilis ZJSH1, an endophytic bacterium from Dendrobium officinale with stress resistance and growth promotion potential

Cited by 12 publications

References 56 publications

Long-term Push-pull Cropping System Shifts Rhizosphere and Maize-root Microbiome Diversity Paving Way To Resilient Farming System

Long-term Push-pull Cropping System Shifts Rhizosphere and Maize-root Microbiome Diversity Paving Way To Resilient Farming System

Deciphering the mechanisms, hormonal signaling, and potential applications of endophytic microbes to mediate stress tolerance in medicinal plants

Impact of plant growth-promoting rhizobacteria (PGPR) on plant nutrition and root characteristics: Current perspective

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