Advertisement

Topics

Relationship between Mg, B and Mn status and tomato tolerance against Cd toxicity.

08:00 EDT 28th March 2019 | BioPortfolio

Summary of "Relationship between Mg, B and Mn status and tomato tolerance against Cd toxicity."

Distinct tomato genotypes possess different tolerance degree to cadmium (Cd), but the mechanisms behind this phenomenon are scarcely understood. To this end, the physiological, biochemical, anatomical, nutritional and molecular mechanisms associated to the plant tolerance against Cd toxicity were investigated in five tomato accessions with contrasting sensitivity to Cd exposure. Firstly, the data revealed that larger biomass loss was not always coupled to higher Cd concentration, indicating that other events, in addition to the internal Cd accumulation, impact tomato performance at early stages of Cd exposure. Secondly, the results indicated that the fine regulation of nutrient status, particularly magnesium (Mg), boron (B) and manganese (Mn), is associated to the mitigation of Cd toxicity. Magnesium status was coupled to the modulation of root development, resulting in changes in root hair formation and biomass allocation. Boron accumulation in leaves was linked to Cd toxicity, suggesting that tolerance mechanisms involved strategies to decrease or even avoid B excess in photosynthetic tissues. Disturbances in Mn status, i.e. Mn excess in leaves and Mn deficiency in roots, were also related to tomato sensitivity to Cd exposure. Thirdly, plant capacity to maintain leaf blade expansion is a relevant strategy for a better tomato development after short-term Cd exposure. Fourthly, tomato tolerance to Cd-induced stress does not depend on CAT activity enhancements in such conditions. In conclusion, tomato ability to quickly manage its nutritional status is necessary for alleviation of the Cd effects at early stages of exposure to this metal. The better understanding about tolerance mechanisms and mode of action of Cd toxicity in plants can help in the establishment of strategies to mitigate its impacts on crops.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of environmental management
ISSN: 1095-8630
Pages: 84-92

Links

DeepDyve research library

PubMed Articles [14255 Associated PubMed Articles listed on BioPortfolio]

Grafting improves tomato drought tolerance through enhancing photosynthetic capacity and reducing ROS accumulation.

Drought is the main meteorological threat to plants and limits plant growth, development, and adaptation to environmental changes. However, root-shoot communication plays a vital role in improving tom...

Comparison of Polyphenol-Enriched Tomato Juice and Standard Tomato Juice for Cardiovascular Benefits in Subjects with Stage 1 Hypertension: a Randomized Controlled Study.

There is a growing body of evidence that tomato consumption reduces the risk of cardiovascular disease, through antioxidative, anti-inflammatory and hypotensive effects. We compared the effects of pol...

Comparative Physiological and Biochemical Evaluation of Salt and Nickel Tolerance Mechanisms in Two Contrasting Tomato Genotypes.

Plant tolerance against a combination of abiotic stresses is a complex phenomenon, which involves various mechanisms. Physiological and biochemical analyses of salinity (NaCl) and nickel (Ni) toleranc...

Human papillomavirus risk perceptions and relationship status: a barrier to HPV vaccination?

The purpose of this study was to assess the association between relationship status and perceived risk for human papillomavirus (HPV) among young adults. College adults, aged 18-26 years, completed a...

Management of chromium (VI) toxicity by calcium and sulfur in tomato and brinjal: Implication of nitric oxide.

To reduce pressure of toxic metals on crop plants, several strategies are being employed of which nutrient management is gaining much importance. Moreover, whether nitric oxide (NO), has any role in n...

Clinical Trials [7967 Associated Clinical Trials listed on BioPortfolio]

Tomato Supplementation and Cardiovascular Health

This clinical trial aims to test the effects of consuming two types of tomato (one ordinary cherry red tomato containing lycopene, and the other a yellow cherry tomato low in lycopene), on...

Tomato Soy Juice for Men's Health

The primary objective of this study is to determine if tomato-soy juice can reduce inflammation, which is linked to prostate cancer, in obese males.

A Study of Tomato Products and Disease Risk

The purpose of this research study is to test whether certain compounds in tomatoes will help reduce factors in the subject's blood associated with disease risk. The investigators want to ...

Effects of Tomato-Soy Juice on Biomarkers in Patients With Prostate Cancer Undergoing Prostatectomy

RATIONALE: Tomato-soy juice may slow the growth of tumor cells. Studying samples of blood and tissue from patients with prostate cancer in the laboratory may help doctors identify biomarke...

Taste Acceptability of Tomato-Soy-Arugula Seed Beverages in Men With Prostate Cancer

This study is a sensory analysis of several different formulations of a novel tomato-soy-arugula seed beverage in men with prostate cancer. Eating a diet rich in a variety of fruits and ve...

Medical and Biotech [MESH] Definitions

The normal lack of the ability to produce an immunological response to autologous (self) antigens. A breakdown of self tolerance leads to autoimmune diseases. The ability to recognize the difference between self and non-self is the prime function of the immune system.

A functional relationship between psychological phenomena of such nature that the presence of one tends to evoke the other; also, the process by which such a relationship is established.

The study of NUTRITION PROCESSES during EXERCISE and ATHLETIC PERFORMANCE as well as specific NUTRITIONAL REQUIREMENTS of ATHLETES and the relationship between NUTRITIONAL STATUS and NUTRITION DISORDERS in athletes.

A prolonged seizure or seizures repeated frequently enough to prevent recovery between episodes occurring over a period of 20-30 minutes. The most common subtype is generalized tonic-clonic status epilepticus, a potentially fatal condition associated with neuronal injury and respiratory and metabolic dysfunction. Nonconvulsive forms include petit mal status and complex partial status, which may manifest as behavioral disturbances. Simple partial status epilepticus consists of persistent motor, sensory, or autonomic seizures that do not impair cognition (see also EPILEPSIA PARTIALIS CONTINUA). Subclinical status epilepticus generally refers to seizures occurring in an unresponsive or comatose individual in the absence of overt signs of seizure activity. (From N Engl J Med 1998 Apr 2;338(14):970-6; Neurologia 1997 Dec;12 Suppl 6:25-30)

The ability of some cells or tissues to withstand ionizing radiation without serious injury. Tolerance depends on the species, cell type, and physical and chemical variables, including RADIATION-PROTECTIVE AGENTS and RADIATION-SENSITIZING AGENTS.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topic

Stress
Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...


Searches Linking to this Article