A5041717103- Plant Stress Responses and Tolerance
- Plant nutrient uptake and metabolism
- Irrigation Practices and Water Management
- Plant Molecular Biology Research
- Plant Water Relations and Carbon Dynamics
- Legume Nitrogen Fixing Symbiosis
- Plant responses to water stress
- Plant-Microbe Interactions and Immunity
- Plant Physiology and Cultivation Studies
- Greenhouse Technology and Climate Control
- Plant responses to elevated CO2
- Nematode management and characterization studies
- Plant Reproductive Biology
- Potato Plant Research
- Rice Cultivation and Yield Improvement
- Agronomic Practices and Intercropping Systems
- Plant Parasitism and Resistance
- Plant Disease Management Techniques
- Light effects on plants
- Horticultural and Viticultural Research
- Crop Yield and Soil Fertility
- Plant Micronutrient Interactions and Effects
- Photosynthetic Processes and Mechanisms
- Leaf Properties and Growth Measurement
- Plant tissue culture and regeneration
Lancaster University
2016-2025
Guizhou University
2025
Wageningen University & Research
2023
Bielefeld University
2020
Lancaster University Ghana
2005-2020
Centro de Edafología y Biología Aplicada del Segura
2015
The University of Queensland
1997-2004
Following exposure to salinity, the root/shoot ratio is increased (an important adaptive response) due rapid inhibition of shoot growth (which limits plant productivity) while root maintained. Both processes may be regulated by changes in hormone concentrations. Tomato plants (Solanum lycopersicum L. cv Moneymaker) were cultivated hydroponically for 3 weeks under high salinity (100 mM NaCl) and five major hormones (abscisic acid, ABA; cytokinins zeatin, Z, zeatin-riboside, ZR; auxin...
Plant growth-promoting rhizobacteria are commonly found in the rhizosphere (adjacent to root surface) and may promote plant growth via several diverse mechanisms, including production or degradation of major groups hormones that regulate development. Although rhizobacterial seems relatively widespread (as judged from physico-chemical measurements bacterial culture media), evidence continues accumulate, particularly seedlings grown under gnotobiotic conditions, can modify hormone status....
• Decreased soil water availability can stimulate production of the plant hormone ethylene and inhibit growth. Strategies aimed at decreasing stress evolution might attenuate its negative effects. An environmentally benign (nonchemical) method modifying crop relations – inoculation with a natural root-associated bacterium Variovorax paradoxus 5C-2 (containing enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase that degrades precursor ACC), was assessed pea (Pisum sativum) plants grown...
Vertical farming systems (VFS) have been proposed as an engineering solution to increase productivity per unit area of cultivated land by extending crop production into the vertical dimension. To test whether this approach presents a viable alternative horizontal systems, VFS (where plants were grown in upright cylindrical columns) was compared against conventional hydroponic system (HHS) using lettuce (
Drought tolerant rhizobacteria of the genus Bacillus, Enterobacter, Moraxella and Pseudomonas colonizing root system Acacia arabica were isolated to mitigate drought stress wheat (Triticum aestivum L.). In vitro auxin production by was quantified Ultra High Performance Liquid Chromatography (UPLC). Analysis crude extracts detected indole-3-acetic acid (IAA), indole-3-carboxylic (ICA) indole-3-lactic (ILA). Highest IAA 25.9 µg ml−1 observed for Bacillus amyloliquefaciens S-134. Pot trials...
Although plant salt tolerance has been improved by soil inoculation with rhizobacteria containing the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase (which metabolises ACC, immediate precursor of phytohormone ethylene), it is not always clear whether ion homeostasis and water relations are affected. When pea (Pisum sativum L. cv. Alderman) was grown 70 130mM NaCl, ACC-deaminase rhizobacterium Variovorax paradoxus 5C-2 increased total biomass 25 54% respectively. Nutrient flow...
Abstract Europe imports large amounts of soybean that are predominantly used for livestock feed, mainly sourced from Brazil, USA and Argentina. In addition, the demand GM-free human consumption is project to increase. Soybean has higher protein quality digestibility than other legumes, along with high concentrations isoflavones, phytosterols minerals enhance nutritional value as a food ingredient. Here, we examine potential increase production across feed direct consumption, review possible...
Leaf senescence is one of the most limiting factors to plant productivity under salinity. Both accumulation specific toxic ions (e.g. Na+) and changes in leaf hormone relations are involved regulation this process. Tomato plants (Solanum lycopersicum L. cv Moneymaker) were cultivated for 3 weeks high salinity (100 mM NaCl) senescence-related parameters studied during development relation Na+ K+ contents abscisic acid (ABA), cytokinins, ethylene precursor 1-aminocyclopropane-1-carboxylic...
Salinity limits crop productivity, in part by decreasing shoot concentrations of the growth-promoting and senescence-delaying hormones cytokinins. Since constitutive cytokinin overproduction may have pleiotropic effects on plant development, two approaches assessed whether specific root-localized transgenic IPT (a key enzyme for biosynthesis) gene expression could substantially improve tomato growth yield under salinity: transient root induction (HSP70::IPT) grafting wild-type (WT) shoots...
Tomato crop productivity under salinity can be improved by grafting cultivars onto salt-tolerant wild relatives, thus mediating the supply of root-derived ionic and hormonal factors that regulate leaf area senescence. A tomato cultivar was grafted rootstocks from a population recombinant inbred lines (RILs) derived Solanum lycopersicum x cheesmaniae cross cultivated moderate (75 mM NaCl). Concentrations Na(+), K(+) several phytohormones [abscisic acid (ABA); cytokinins (CKs) zeatin, Z;...
Salinity decreases crop yield first by reducing growth of assimilate-consuming sink organs and, second, decreasing assimilate production in photosynthetically active source tissues. Although much work has focussed on controlling the accumulation toxic ions (mainly Na+ and Cl–), search for primary limiting factor(s) continues. The root, sensing environmental constraints soil, may influence root-to-shoot signalling to control shoot physiology, ultimately agricultural productivity. Hormonal...