Cluster roots of Embothrium coccineum modify their metabolism and show differential gene expression in response to phosphorus supply

Delgado, Mabel; Henríquez‐Castillo, Carlos; Zúñiga‐Feest, Alejandra; Sepúlveda, Francisco; Hasbún, Rodrigo; Hanna, Patricia; Reyes‐Díaz, Marjorie; Bertin-Benavides, Ariana

doi:10.1016/j.plaphy.2021.02.014

Cited by 4 publications

(5 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…White lupin offers a model crop species with an excellent system to evaluate P-deficiency responses over many years because of its cluster root forming nature upon P deficiency [ 39 ]. To cope with P-depleted soils, cluster roots (tertiary lateral root structures) are highly efficient in P uptake and mobilization in plants [ 47 , 48 , 49 ]. Therefore, the white lupin plant as a crop is a practical alternative to assess P acclimation responses [ 49 ], thereby ameliorating P uptake for better crop growth.…”

Section: Discussionmentioning

confidence: 99%

Global Identification of White Lupin lncRNAs Reveals Their Role in Cluster Roots under Phosphorus Deficiency

Aslam

Waseem²,

et al. 2022

IJMS

View full text Add to dashboard Cite

Phosphorus (P) deficiency heterogeneously affected plant nutritional status and physiological performance, ultimately leading to a severe yield reduction. A few putative long non-coding RNAs (lncRNAs) responding to P-starvation in the model crops Arabidopsis thaliana and Oryza sativa have been characterized. White lupin (Lupinus albus) is of prime importance, and is a legume with increasing agronomic value as a protein crop as it exhibits extreme tolerance to nutrient deficiency, particularly P deficiency. Despite its adapted nature to P deficiency, nothing is known about low P-induced lncRNAs in white lupin roots. To address this issue, we identified 39,840 mRNA and 2028 lncRNAs in the eight developmental stages of white lupin root (S0–S7 and lateral root, LR) grown under P deficiency. From these 2028 lncRNAs, 1564 were intergenic and 464 natural antisense intergenic transcript (NAT) lncRNAs. We further predicted six potential targets of miRNAs with twelve lncRNAs, which may regulate P-deficiency-related processes. Moreover, the weighted gene co-expression network analysis (WGCNA) revealed seven modules that were correlated with the expression pattern of lncRNAs. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed 606 GO terms and 27 different pathways including signal transduction, energy synthesis, detoxification, and Pi transport. In addition, we screened 13 putative lncRNAs that showed a distinct expression pattern in each root, indicating their role in the P deficiency regulatory network. Therefore, white lupin may be a reference legume to characterize P-deficiency-responsive novel lncRNAs, which would highlight the role of lncRNAs in the regulation of plant responses to P deficiency.

show abstract

Section: Discussionmentioning

confidence: 99%

Global Identification of White Lupin lncRNAs Reveals Their Role in Cluster Roots under Phosphorus Deficiency

Aslam

Waseem²,

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…Native P in the soil is strongly adsorbed to functional groups of reactive soil particles, such as oxides, oxyhydroxides and clay minerals, which leads to lower mobility in the soil and, consequently, decreased P availability for plant absorption [29][30][31], which is reflected in lower aerial and root growth. Plants under P deficiency usually show suppression in principal root growth, associated with increased lateral roots and cluster roots, due to decreased levels of gibberellic acid caused by lack of Pi [7,8,36,37]. In addition, it is known that to deal with low P availability, plants can develop P acquisition strategies such as root morphological modifications to increase soil exploration (e.g., cluster roots) and exudation of organic acids, including carboxylates, phosphatases and proteases, among other adaptations at the morphological and biochemical level [7,8,36].…”

Section: Discussionmentioning

confidence: 99%

“…Plants under P deficiency usually show suppression in principal root growth, associated with increased lateral roots and cluster roots, due to decreased levels of gibberellic acid caused by lack of Pi [7,8,36,37]. In addition, it is known that to deal with low P availability, plants can develop P acquisition strategies such as root morphological modifications to increase soil exploration (e.g., cluster roots) and exudation of organic acids, including carboxylates, phosphatases and proteases, among other adaptations at the morphological and biochemical level [7,8,36]. However, this often occurs at the expense of growth and photosynthesis [38], causing lower biomass production.…”

Section: Discussionmentioning

confidence: 99%

“…The proper growth of native trees such as ipê-roxo tree, mainly in soils presenting low natural fertility, may be associated with the development of mechanisms or strategies such as root morphological modifications to increase soil exploration (cluster roots) changes in rhizospheric soil pH and exudation of organic acids such as malic and citric acids, among others, which increase soluble organic carbon concentration in the solution and, consequently, increase the solubilization and availability of nutrients such as phosphorus (P) [7,8]. However, soil-available P concentrations do not always meet plants' demands, especially in sites aimed at rapid wood growth and high yield [9,10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Root System Morphology of Ipê-Roxo Tree Grown in Soil Subjected to Phosphorus Application in Subtropical Climate Region

et al. 2021

View full text Add to dashboard Cite

Phosphorus (P) availability in subtropical soils does not often meet the nutritional demand of native tree species such as the ipê-roxo tree (Handroanthus heptaphyllus); therefore, it is necessary to supply P at planting. However, the impact of P on root system growth remains unknown. The aim of the current study was to investigate the effect of P application on root morphology of H. heptaphyllus plants over a 36-month period in a subtropical climate region. During the experiment, the plants subjected to fertilization with 40 kg P ha−1 were compared to untreated control. Plant roots were scanned through minirhizotron system 18 and 36 months after transplant (MAT), and generated images were used to determine total root length, mean root diameter and total root volume. Plant height and leaf P concentrations were also evaluated. Phosphorus application enhanced root and whole plant growth with a more evident effect at 36 MAT, when soil P availability decreased. The results give important information on the cultivation of H. heptaphyllus plants in soils presenting low P availability.

show abstract

“…arbuscular (AM) or ectomycorrhizal (EcM) fungal association), or the presence or absence of nitrogen‐fixation symbioses or cluster roots (i.e. specialized root structures with dense proliferations of fine, lateral rootlets that aid in solubilization, especially of adsorbed and metal‐complexed inorganic phosphorus and inositol phosphate, and transformation of soil nutrients, specifically organic phosphorous forms; Dinkelaker et al 1995, Shane and Lambers 2005, Lambers et al 2006, Delgado et al 2021). New multidimensional belowground conceptual models often do include mycorrhiza (McCormack and Iversen 2019, Bergmann et al 2020), but generally fail to account for uptake strategies associated with nitrogen‐fixation, cluster roots and physiological traits (e.g.…”

Section: Introductionmentioning

confidence: 99%

A framework for fine‐root trait syndromes: syndrome coexistence may support phosphorus partitioning in tropical forests

Dallstream

Weemstra

Soper

2022

Oikos

View full text Add to dashboard Cite

Fine roots balance multiple essential plant functions that ultimately fuel plant productivity. The coordination of root functional traits is multidimensional, meaning that some traits are correlated while others can vary independently. This leads to a large variety of adaptive trait combinations and thus functional diversity in plant belowground morphology, anatomy, physiology and symbioses with soil biota. Within forest communities, co‐occurrence of such belowground trait combinations may be especially prevalent in tropical forests, not only due to their immense biodiversity but also because their soils are frequently weathered and limited in phosphorus. Phosphorus occurs in different forms (that differ in their mobility and accessibility) that may select for different trait combinations on relatively small spatial scales. While evidence accumulates of the myriad viable nutrient acquisition strategies on poor tropical soils, they are not well conceptualized. In this study, we outline criteria for the identification and investigation of fine‐root trait syndromes. We then apply these criteria to a case study of tropical tree species adapted to phosphorus‐poor soil and synthesize a range of traits. Five potentially coexisting syndromes are presented that are distinguished by root morphology, mycorrhizal association type, their interactions and implications for fine‐root functioning. We connect the functional variation of these species‐level syndromes in tropical communities to an established phosphorus partitioning hypothesis. The co‐occurrence of fine‐root trait syndromes could have implications for root sampling design, species coexistence, community structure and biogeochemical cycling.

show abstract

Cluster roots of Embothrium coccineum modify their metabolism and show differential gene expression in response to phosphorus supply

Cited by 4 publications

References 50 publications

Global Identification of White Lupin lncRNAs Reveals Their Role in Cluster Roots under Phosphorus Deficiency

Global Identification of White Lupin lncRNAs Reveals Their Role in Cluster Roots under Phosphorus Deficiency

Root System Morphology of Ipê-Roxo Tree Grown in Soil Subjected to Phosphorus Application in Subtropical Climate Region

A framework for fine‐root trait syndromes: syndrome coexistence may support phosphorus partitioning in tropical forests

Contact Info

Product

Resources

About