Miriam L. Gifford
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View article: Cellular pH homeostasis shapes root system architecture by modulating auxin-mediated developmental responses
Cellular pH homeostasis shapes root system architecture by modulating auxin-mediated developmental responses Open
Cell expansion relies on turgor pressure and acidification-dependent loosening of the rigid cell wall. Distinct cell surface-based and intracellular auxin signaling pathways synergistically activate plasma membrane H+-ATPases, acidifying t…
View article: Rootrainertrons: a novel root phenotyping method used to identify genotypic variation in lettuce rooting
Rootrainertrons: a novel root phenotyping method used to identify genotypic variation in lettuce rooting Open
Background There is much interest in how roots can be manipulated to improve crop performance in a changing climate, yet root research is made difficult by the challenges of visualising the root system accurately, particularly when grown i…
View article: <i>Trichoderma</i> gets by with a little help from <i>Streptomyces</i>: fungal–bacterial symbiosis in plant growth promotion
<i>Trichoderma</i> gets by with a little help from <i>Streptomyces</i>: fungal–bacterial symbiosis in plant growth promotion Open
This article comments on: Kabir AH, Thapa A, Hasan R, Parvej R. 2024. Local signal from Trichoderma afroharzianum T22 induces host transcriptome and endophytic microbiome leading to growth promotion in sorghum. Journal of Experimental Bota…
View article: Timely symbiosis: circadian control of legume-rhizobia symbiosis
Timely symbiosis: circadian control of legume-rhizobia symbiosis Open
Legumes house nitrogen-fixing endosymbiotic rhizobia in specialised polyploid cells within root nodules. This results in a mutualistic relationship whereby the plant host receives fixed nitrogen from the bacteria in exchange for dicarboxyl…
View article: In preprints: hormonal stepping stones to diverging root organogenesis
In preprints: hormonal stepping stones to diverging root organogenesis Open
Legumes form a symbiotic relationship with bacteria called rhizobia. The rhizobia fix atmospheric dinitrogen, which is used by the plant as a nitrogen resource, and take up molecules, including carbon compounds, from the plant. Rhizobia ar…
View article: Root architecture and rhizosphere–microbe interactions
Root architecture and rhizosphere–microbe interactions Open
Plant roots fulfil crucial tasks during a plant’s life. As roots encounter very diverse conditions while exploring the soil for resources, their growth and development must be responsive to changes in the rhizosphere, resulting in root arc…
View article: Ca2+ signatures in symbiosis: another level of dynamism for this key messenger
Ca2+ signatures in symbiosis: another level of dynamism for this key messenger Open
This article comments on: Binci F, Offer E, Crosino A, Sciascia I, Kleine-Vehn J, Genre A, Giovannetti M, Navazio L. 2024. Spatially and temporally distinct Ca2+ changes in Lotus japonicus roots orient fungal-triggered signalling pathways …
View article: Plant–Environment Response Pathway Regulation Uncovered by Investigating Non-Typical Legume Symbiosis and Nodulation
Plant–Environment Response Pathway Regulation Uncovered by Investigating Non-Typical Legume Symbiosis and Nodulation Open
Nitrogen is an essential element needed for plants to survive, and legumes are well known to recruit rhizobia to fix atmospheric nitrogen. In this widely studied symbiosis, legumes develop specific structures on the roots to host specific …
View article: Additional file 8 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 8 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 8: Table S3. RNAseq values and analysis for nodule and root samples.
View article: Additional file 7 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 7 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 7: Table S2. Percentages of microbial diversity variation explained by soil type, soil nutrition and plant nutrition.
View article: Additional file 10 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 10 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 10: Supplementary Data S2. Plant mineral analysis.
View article: Additional file 6 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 6 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 6: Table S1. Plant aboveground dry weight values and statistical analysis.
View article: Additional file 9 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 9 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 9: Supplementary Data S1. Soil location and characteristics; soil mineral analysis for input and experimentally-derived samples and cluster information for soil edaphic factors.
View article: Additional file 11 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth
Additional file 11 of Rhizobial nitrogen fixation efficiency shapes endosphere bacterial communities and Medicago truncatula host growth Open
Additional file 11: Supplementary Data S3. Microbiome community analysis.
View article: Elucidating connections between the strigolactone biosynthesis pathway, flavonoid production and root system architecture in <i>Arabidopsis thaliana</i>
Elucidating connections between the strigolactone biosynthesis pathway, flavonoid production and root system architecture in <i>Arabidopsis thaliana</i> Open
Strigolactones (SLs) are the most recently discovered phytohormones, and their roles in root architecture and metabolism are not fully understood. Here, we investigated four MORE AXILLARY GROWTH ( MAX ) SL mutants in Arabidopsis thaliana ,…
View article: Cell-type specific transcriptional networks in root xylem adjacent cell layers
Cell-type specific transcriptional networks in root xylem adjacent cell layers Open
Transport of water, ions and signals from roots to leaves via the xylem vessels is essential for plant life and needs to be tightly regulated. The final composition of the transpiration stream before passage into the shoots is controlled b…
View article: Plant circadian clock control of <i>Medicago truncatula</i> nodulation via regulation of nodule cysteine-rich peptides
Plant circadian clock control of <i>Medicago truncatula</i> nodulation via regulation of nodule cysteine-rich peptides Open
Legumes house nitrogen-fixing endosymbiotic rhizobia in specialized polyploid cells within root nodules, which undergo tightly regulated metabolic activity. By carrying out expression analysis of transcripts over time in Medicago truncatul…
View article: Comparative Genomics across Three Ensifer Species Using a New Complete Genome Sequence of the Medicago Symbiont Sinorhizobium (Ensifer) meliloti WSM1022
Comparative Genomics across Three Ensifer Species Using a New Complete Genome Sequence of the Medicago Symbiont Sinorhizobium (Ensifer) meliloti WSM1022 Open
Here, we report an improved and complete genome sequence of Sinorhizobium (Ensifer) meliloti strain WSM1022, a microsymbiont of Medicago species, revealing its tripartite structure. This improved genome sequence was generated combining Ill…
View article: The importance of independent replication of treatments in plant science
The importance of independent replication of treatments in plant science Open
Among other foci, the Journal of Experimental Botany aims to advance understanding of plant environment interactions, including abiotic stress, mineral nutrition, and the response of plants to global change. Advancing understanding in thes…
View article: Overproduction of <scp>ABA</scp> in rootstocks alleviates salinity stress in tomato shoots
Overproduction of <span>ABA</span> in rootstocks alleviates salinity stress in tomato shoots Open
To determine whether root‐supplied ABA alleviates saline stress, tomato ( Solanum lycopersicum L. cv. Sugar Drop) was grafted onto two independent lines (NCED OE) overexpressing the SlNCED1 gene (9‐ cis ‐epoxycarotenoid dioxygenase) and wi…
View article: Overproduction of ABA in rootstocks alleviates salinity stress in tomato shoots
Overproduction of ABA in rootstocks alleviates salinity stress in tomato shoots Open
To determine whether root-supplied ABA alleviates saline stress, tomato (Solanum lycopersicum L. cv. Sugar Drop) was grafted onto two independent lines overexpressing the SlNCED1 (9-cis-epoxycarotenoid dioxygenase) gene (NCED OE) and wild …
View article: Determinants of Host Range Specificity in Legume-Rhizobia Symbiosis
Determinants of Host Range Specificity in Legume-Rhizobia Symbiosis Open
Leguminous plants possess the almost unique ability to enter symbiosis with soil-resident, nitrogen fixing bacteria called rhizobia. During this symbiosis, the bacteria physically colonize specialized organs on the roots of the host plant …
View article: Framework for Quantification of the Dynamics of Root Colonization by Pseudomonas fluorescens Isolate SBW25
Framework for Quantification of the Dynamics of Root Colonization by Pseudomonas fluorescens Isolate SBW25 Open
Colonization of the root surface, or rhizoplane, is one of the first steps for soil-borne bacteria to become established in the plant microbiome. However, the relative contributions of processes, such as bacterial attachment and proliferat…
View article: Symbiotic Outcome Modified by the Diversification from 7 to over 700 Nodule-Specific Cysteine-Rich Peptides
Symbiotic Outcome Modified by the Diversification from 7 to over 700 Nodule-Specific Cysteine-Rich Peptides Open
Legume-rhizobium symbiosis represents one of the most successfully co-evolved mutualisms. Within nodules, the bacterial cells undergo distinct metabolic and morphological changes and differentiate into nitrogen-fixing bacteroids. Legumes i…
View article: A ‘nodemap’ to sustainable maize roots: linking nitrogen and water uptake improvements
A ‘nodemap’ to sustainable maize roots: linking nitrogen and water uptake improvements Open
This article comments on: Guo H, York LM. 2019. Maize with fewer nodal roots allocates mass to more lateral and deep roots that improve nitrogen uptake and shoot growth. Journal of Experimental Botany70, 5299–5309. Yang JT, Schneider HM, B…
View article: Plant–microbe interactions: tipping the balance
Plant–microbe interactions: tipping the balance Open
International Congress on Molecular Plant Microbe Interactions in Glasgow (2019) focuses on research that tackles the consequences of plant-microbe interactions, for both plant-mutualist and plant-pathogen scenarios.When organisms interact…