Plant and soil microbial community responses to different water management strategies in an almond crop

Trigueros, Cristina Romero; Díaz‐López, Marta; Vivaldi, Gaetano Alessandro; Camposeo, Salvatore; Nicolás, Emilio Nicolás; Bastida, Felipe

doi:10.1016/j.scitotenv.2021.146148

Cited by 19 publications

(12 citation statements)

References 73 publications

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“…Soil microbial community structure can be jointly regulated by the environment and available resources ( Zhao et al, 2022 ). The seasonal variation leads to changes in soil temperature and moisture, both of which are significant drivers of soil microbial communities ( Kim et al, 2020 ; Shi et al, 2020b ; Romero-Trigueros et al, 2021 ). Meanwhile, the reciprocal effect between temperature and precipitation could influence carbon cycling by regulating microbes ( You et al, 2014 ; Taylor et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Seasonal patterns of rhizosphere microorganisms suggest carbohydrate-degrading and nitrogen-fixing microbes contribute to the attribute of full-year shooting in woody bamboo Cephalostachyum pingbianense

Xia

Yang

2022

Front. Microbiol.

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Compared with the ordinary single-season shooting among woody bamboos in Poaceae, the attribute of full-year shooting in Cephalostachyum pingbianense represents a unique shooting type or mechanism. Nevertheless, except for the overall physiological mechanism, the effect of ecological factors, especially soil microorganisms, on this full-year shooting characteristic remains unclear. In this study, 16S rRNA and ITS rRNA genes were sequenced using the Illumina platform. Our aims were to detect the seasonal changes in rhizospheric microbial communities of C. pingbianense and to discover the correlations of soil microbes with soil properties and bamboo shoot productivity. The results showed that seasonal change had no significant effect on bacterial alpha diversity, but significantly affected bacterial and fungal community structures as well as fungal richness. Among all soil properties examined, soil temperature, soil moisture and organic matter were the predominant factors affecting bacterial community diversity and structure. Soil temperature and soil moisture also significantly influenced fungal community structure, while available phosphorus had the greatest effect on fungal diversity. In each season, bacterial genera Acidothermus, Roseiarcus, and Bradyrhizobium, along with fungal genera Saitozyma, Mortierella, Trichoderma, etc., were dominant in bacterial and fungal communities, respectively. Bacterial community functions in four seasons were dominated by chemoheterotrophy, cellulolysis, and nitrogen fixation. Saprotrophic fungi occupied a high proportion in soil samples of all seasons. In addition, correlation analysis revealed that the bamboo shoot productivity was positively correlated with multiple microbial taxa involved in carbon and nitrogen cycles. It is proposed that highly abundant microbes involved in carbohydrate degradation and nitrogen fixation in the rhizosphere soil may contribute to the attribute of producing bamboo shoots all year round in C. pingbianense. This study is among the few cases revealing the connection between bamboo shooting characteristics and soil microorganisms, and provides new physiological and ecological insights into the forest management of woody bamboos.

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Section: Discussionmentioning

confidence: 99%

Seasonal patterns of rhizosphere microorganisms suggest carbohydrate-degrading and nitrogen-fixing microbes contribute to the attribute of full-year shooting in woody bamboo Cephalostachyum pingbianense

Xia

Yang

2022

Front. Microbiol.

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“…But the effects of organic mulching on the microbial microenvironments can be complex, especially the fermentation of organic materials under mulching conditions could increase soil O 2 consumption and aggravate hypoxia stress (Qian et al, 2021), with potential effects on soil fungal community structure. It is worth note that that researchers have reported that irrigation and soil compaction influence fungal community structure considerably (Miransari, 2013; Buil et al, 2021; Romero‐Trigueros et al, 2021; Rosas‐Medina et al, 2020). The impacts of hypoxic conditions induced by mulching on soil fungal community structure have been poorly studied.…”

Section: Introductionmentioning

confidence: 99%

Can aeration improve bamboo soil fertility of soil below bamboo and fungal diversity under mulching conditions?

et al. 2022

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Aeration can alleviate soil hypoxia stress of Phyllostachys praecox bamboo under mulching conditions, but how aeration affects soil properties, soil fungal community structure, and bamboo development is unclear. We studied the responses of soil properties, fungal community structure, bamboo shoots, and rhizome growth to organic mulching (TM), mulching with aeration (TA1 and TA2), and no‐mulching treatments (CK) from a field experiment in March and July, 2019. During the mulching period (March), the aeration improvement treatment (TA2) improved soil O2 content, bamboo shoots yield, and soil nutrient availability significantly when compared with TM. TA2 treatment showed significantly higher relative abundances of the genus Trichoderma and functional group endophyte than TM treatment, which might be conducive to soil nutrient transformation and bamboo growth. The TA2 treatment had higher fungal diversity indices than that of the TA1 treatment, suggesting that optimal aeration conditions enhance soil fungal diversity. The fungal community structure also showed strong temporal dynamics in all treatments. Mantel test results indicated soil O2 is the primary factor driving fungal community structure under mulching conditions, while has no impact on the fungal community in summer; fungal community structure was primarily controlled by soil pH in summer. Structural equation model revealed soil NO3−‐N content was responsible directly for bamboo rhizome growth and shoot yield. Our results indicate short‐term mulching is beneficial to soil nutrients improvement and bamboo yield increase, while rational aeration can further facilitate sustainable plantation development under hypoxic soil conditions.

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“…Numerous studies have been conducted on the use of urban wastewater to irrigate different fruit tree species, such as vineyards [ 35 ], Citrus spp. [ 36 ], nectarines [ 37 , 38 ], almonds [ 39 , 40 ] and olive [ 41 , 42 ]. Olive trees provide the most representative fruit tree crop of the Mediterranean basin, can produce approximately 80% of the world’s olive oil and are appropriate candidates for the reuse of recycled water [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Irrigation of Olives with Reclaimed Wastewaters and Deficit Strategies Affect Pathogenic Bacteria Contamination of Water and Soil

et al. 2022

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This study aimed to evaluate pathogenic bacterial contamination of the water-soil-plant system in potted olive trees irrigated with reclaimed wastewater. Desalinated water (DW) obtained by treating municipal wastewater (SW) and reclaimed water (RW) obtained by mixing SW with the brine (BR) produced by DESERT technology (tertiary treatment by ultrafiltration, active carbon and reverse osmosis) were used. Two different irrigation regimes were compared: full irrigation (FI) and regulated deficit irrigation (RDI). During two irrigation seasons the concentrations of Escherichia coli, enterococci, spores of sulfite-reducing Clostridia (SRC) and Salmonella spp. were monitored in water, soil and fruit samples. Microbial concentrations in DW were always below the threshold for reuse in agriculture, while RW showed the highest level of contamination for all observed parameters. RDI management appeared to increase the soil content of SRC spores with respect to FI. Sporadically low SRC spore contamination was recorded in some fruits only in 2018, regardless of the irrigation source, probably because of accidental contamination during sampling or post-harvest handling. This study encourages the creation of a better regulatory framework reference, with specific guidelines for the use of RW as part of integrated environmental systems for the management of sustainable agriculture.

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Plant and soil microbial community responses to different water management strategies in an almond crop

Cited by 19 publications

References 73 publications

Seasonal patterns of rhizosphere microorganisms suggest carbohydrate-degrading and nitrogen-fixing microbes contribute to the attribute of full-year shooting in woody bamboo Cephalostachyum pingbianense

Seasonal patterns of rhizosphere microorganisms suggest carbohydrate-degrading and nitrogen-fixing microbes contribute to the attribute of full-year shooting in woody bamboo Cephalostachyum pingbianense

Can aeration improve bamboo soil fertility of soil below bamboo and fungal diversity under mulching conditions?

Irrigation of Olives with Reclaimed Wastewaters and Deficit Strategies Affect Pathogenic Bacteria Contamination of Water and Soil

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