Interactions between below‐ground traits and rhizosheath fungal and bacterial communities for phosphorus acquisition

Honvault, Nicolas; Houben, David; Firmin, Stéphane; Meglouli, Hacène; Laruelle, Frédéric; Fontaine, Joël; Sahraoui, Anissa Lounès-Hadj; Coutu, Arnaud; Lambers, Hans; Faucon, Michel‐Pierre

doi:10.1111/1365-2435.13823

Cited by 21 publications

(15 citation statements)

References 107 publications

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“…Rice led the same result under various P conditions; PUE was also positively linked with TDB (Wissuwa et al, 2020). Our study showed that genotypes with higher TDB and RDB performed more effectively in improving PUtE, while in other research, the RTN, RSA, TRL, and TRH were significant in PUtE (Sanguineti et al, 2007;Honvault et al, 2021). In rice, the RDB and RSA under LP conditions were the cause of the genotypic variance in PUE (Mori et al, 2016).…”

Section: The Correlation Of Morphological Traits and Effect On Phosph...supporting

confidence: 54%

Genetic variation in morphological traits in cotton and their roles in increasing phosphorus-use-efficiency in response to low phosphorus availability

Kayoumu

Iqbal

et al. 2022

Front. Plant Sci.

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Phosphorus (P) is an essential macronutrient required for fundamental processes in plants. Trait plasticity is crucial for plant adaptation to environmental change. Variations in traits underlie diverse phosphorus (P) acquisition strategies among plants. Nevertheless, how the intraspecific plasticity and integration of morphological traits contribute to Phosphorus-Use-Efficiency (PUE) in cotton is unknown. In this study, 25 morphological traits were evaluated in 384 cotton genotypes grown with low P (LP, 10μmol. L−1) and normal nutrition (CK, 500μmol. L−1) to assess the genetic variability of morphological traits and their relationship to phosphorus use efficiency. Results revealed a large genetic variation in mostly morphological traits under low P. Significant enhancement in root traits and phosphorus efficiency-related traits like PUE was observed at LP as compared to CK conditions. In response to low P availability, cotton genotypes showed large plasticity in shoot and total dry biomass, phosphorus, and nitrogen efficiency-related traits (i.e., phosphorus/nitrogen use efficiency, phosphorus/nitrogen uptake efficiency), and most root traits, but a limited response in root dry biomass, taproot length, root surface area, root volume, and SPAD value. In addition, significant correlations were observed between PUtE (phosphorus uptake efficiency), NUE (nitrogen use efficiency), TDB (total dry biomass), and RTD (root tissue density) with PUE under both P supply level and phosphorus stress index, which may be a key indicator for improving PUE under LP conditions. Most root traits are most affected by genotypes than nutrition level. Conserved PUE is more affected by the nutrition level than the genotype effect. Principal component analysis depicted the comprehensive indicators under two P supply conditions were mainly reflected in root-related traits and morphological indicators such as dry matter biomass. These results indicate that interspecific variations exist within these cotton genotypes and traits. Our study provides suggestions for future research to enhance the ability of the earth system model to predict how crops respond to environmental interference and provide target quality for cotton breeding in phosphorus-deficient areas.

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Section: The Correlation Of Morphological Traits and Effect On Phosph...supporting

confidence: 54%

Genetic variation in morphological traits in cotton and their roles in increasing phosphorus-use-efficiency in response to low phosphorus availability

Kayoumu

Iqbal

et al. 2022

Front. Plant Sci.

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“…Below‐ground processes related to P acquisition are mediated by external environmental conditions and/or the internal P status of plants (Honvault, Houben, Firmin, et al, 2021). The performance of desert plants is generally limited by P and worsened by drought stress (Luo et al, 2020; Vitousek et al, 2010; Yuan & Chen, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Frozen rhizosphere soil was freeze dried for 48 h. The extraction procedures of phospholipid fatty acids (PLFAs) and neutral lipid fatty acids (NLFAs) were based on Honvault, Houben, Firmin, et al (2021). For measuring AM hyphal biomass, the amount of 16:1ω5c PLFA and 16:1ω5c NLFA in the rhizosphere were determined and used as living and recently died AM biomarkers respectively (Honvault, Houben, Firmin, et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Thus, there may be trade‐offs or covariations among P acquisition traits (Han et al, 2022; Wen et al, 2021). Multiple correlations have been found between root morphology and exudates, and rhizosphere microbes (Funayama‐Noguchi et al, 2021; Honvault, Houben, Firmin, et al, 2021). For instance, thick roots benefit from stronger symbiotic AMF associations (Chen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Covariations and trade‐offs of phosphorus (P) acquisition strategies in dioecious Populus euphratica as affected by soil water availability

Xia

Zhu

et al. 2022

Functional Ecology

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1. Dioecious species may be particularly vulnerable to climate change because they often exhibit skewed sex ratios that are reinforced by the physiological and biological specialization of each sex to specific microhabitats. Yet, it is unclear how differences in functional traits between female and male plants lead to sexspecific responses to drought and whether these responses are associated with phosphorus (P) acquisition diverge or converge.2. Here, we measured the morphological and physiological traits of roots, and the functional micro-organisms related to P acquisition in Populus euphratica females and males in the rhizosphere under different water availability.3. The specific root length of females was greater than that of males, regardless of soil water availability. Therefore, the P concentration of females was significantly higher than that of males under well-watered conditions. In contrast, the physiological adjustment to drought showed distinct sexual patterns: males significantly increased the foliar manganese concentration and maintained higher acid phosphatase activities in the rhizosphere. Moreover, the arbuscular mycorrhizal hyphal biomass reduced less in males than in females under water deficiency. Soil water shortage also decreased the α diversity of phosphate solubilizing bacteria (PSB) and changed the co-occurrence network in the rhizosphere of females, but it had little effect on males. Consequently, the favourable physiological processes and effective maintenance of functional microbial homoeostasis in the rhizosphere were the reasons that enabled males to reduce P loss in leaves under water deficiency. 4. Our study indicated that, within P. euphratica populations, covariations and trade-offs simultaneously occurred among the three groups (root morphology, physiology and functional micro-organisms) of functional traits evaluated. More generally, the assessment of variations in sex-specific P acquisition strategies may help to understand the causes of sex ratio bias and how P. euphratica males and females mitigate resource shortage.

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“…Rhizosphere microbes exert significant impacts on plant traits and are critical to plant health and productivity (Hendriks et al, 2013; Luo et al, 2018). A specific microbiome may affect interspecific interactions by expanding or reducing the niche of the host plant and thereby affecting plant–plant interactions and plant community dynamics (Honvault et al, 2021). The importance of beneficial soil organisms and pathogens in diversity–productivity relationships is becoming apparent in both natural and agricultural systems (Bender et al, 2015; Maron et al, 2011; Stefan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Soil biota is decisive for overyielding in intercropping under low phosphorus conditions

Qiao

Bei

Wang

et al. 2022

Journal of Applied Ecology

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1. Cereal/legume intercropping typically increases crop yield; however, the mechanisms through which soil microbes mediate overyielding in intercropping under different nutrient availability remain elusive.2. Here we examined the effect of soil biota and phosphate (P) availability on intercropping advantages in wheat Triticum aestivum/faba bean Vicia faba systems using a pot experiment consisting of soil sterilization treatment and different P supply levels. A complementary experiment on the contribution of different microbial groups was also included using the removal method.3. Intercropping advantage was observed only in the presence of microbes and was mainly associated with increase in wheat biomass. Overyielding effect was stronger under low-P than high-P conditions, and was negatively correlated with P availability and the effect of soil biota in the monoculture. The effect was likely related to the enlarged active P pools and modified microbial communities associated with the alteration of rhizosphere traits (protons and carboxylates) by the neighbouring faba bean. Similarly, simplification of soil microbes significantly increased the growth and P uptake of wheat plants while faba bean growth was less affected. Synthesis and applications.Our research provides compelling evidence that soil microbiome is important in driving intercropping overyielding by regulating interspecific interactions under nutrient-limited conditions. These findings have important implications for crop species choice in designing and managing intercropping systems where crop functional traits, soil microbiome and nutrient management should be integrated in pursuit of sustainable agriculture.

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Interactions between below‐ground traits and rhizosheath fungal and bacterial communities for phosphorus acquisition

Cited by 21 publications

References 107 publications

Genetic variation in morphological traits in cotton and their roles in increasing phosphorus-use-efficiency in response to low phosphorus availability

Genetic variation in morphological traits in cotton and their roles in increasing phosphorus-use-efficiency in response to low phosphorus availability

Covariations and trade‐offs of phosphorus (P) acquisition strategies in dioecious Populus euphratica as affected by soil water availability

Soil biota is decisive for overyielding in intercropping under low phosphorus conditions

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