MECHANISMS UNDERLYING nutrient uptake and PHYTOREMEDIATION

ALeyva

 

Antonio Leyva Tejada

Group Leader

Contact

 

Research summary

The particular interest of my group is the identification of relevant genes involved in soil and water phytoremediation and/or nutrient uptake.

 

 

 

 

Publications

Mohan TC, Castrillo G, Zarco-Fernandez S, Navarro C, Ramireddy E, Zamarreño AM, Paz-Ares J, Muñoz R, García-Mina JM, Hernandez LE, Schmülling T & Leyva A. Cytokinin determines thiol-mediated arsenic tolerance and accumulation. Plant Physiol 2016; 171: 1418

Puga MI, Mateos I, Charukesi R, Wang Z, Franco-Zorrilla JM, de Lorenzo L, Irigoyen ML, Masiero S, Bustos R, Rodríguez J, Leyva A, Rubio V, Sommer H, Paz-Ares J. SPX1 is a phosphate-dependent inhibitor of PHOSPHATE STARVATION RESPONSE1 in Arabidopsis. Proc Natl Acad Sci USA 2014; 111:14947-14952

Sánchez-Bermejo E, Castrillo G, Navarro C, del Llano B, Zarco-Fernández S, Martinez-Herrera DJ, Leo-del Puerto Y, Muñoz R, Cámara C, Paz-Ares J, Alonso-Blanco C, Leyva A. Natural variation in arsenate tolerance identifies an arsenate reductase in Arabidopsis thaliana. Nat Comm 2014; 5:4617

Coego A, Brizuela E, Castillejo P, Ruíz S, Koncz C, Del Pozo JC, Piñeiro M, Jarillo JA, Paz-Ares J, León J; The TRANSPLANTA Consortium. The TRANSPLANTA Collection of Arabidopsis Lines: A resource for Functional Analysis of Transcription Factors based on their conditional overexpression. Plant J 2014; 6:944-953

Castrillo G, Sánchez-Bermejo E, de Lorenzo L, Crevillén P, Fraile-Escanciano A, TC M, Mouriz A, Catarecha P, Sobrino-Plata J, Olsson S, Leo Del Puerto Y, Mateos I, Rojo E, Hernández LE, Jarillo JA, Piñeiro M, Paz-Ares J, Leyva A. WRKY6 Transcription Factor Restricts Arsenate Uptake and Transposon Activation in Arabidopsis. Plant Cell 2013; 25:2944-2957

 

memo fig 1In our group, we are interested in the characterisation of the molecular mechanisms involved in arsenic perception in plants. Arsenic contamination is responsible for the worst mass poisoning ever suffered by man, and is considered a silent threat to public health. Clean-up of arsenic-contaminated soils or arsenic entry into the food chain from crops irrigated with arsenic-contaminated water, of particular importance in rice, is therefore a priority concern for the World Health Organization (Mead, 2005. Environ Health Perspect, 113:A378). This chemical threat was particularly critical for the evolution of sessile organisms such as plants, which were forced to develop rapid tolerance responses when As(V) was present. We recently identified a QTL (quantitative trait locus) that accounts for the genetic variability for As(V) tolerance among Arabidopsis accessions worldwide. Molecular isolation and characterisation of this locus showed it encodes a plant arsenate reductase with potential applications in arsenic phytoremediation (Sanchez-Bermejo et al. Nat Comm, 2014; 5:4617). We also identified a transcriptional repressor that modulates expression of the arsenate transporter, thus identifying the molecular basis of an alternative strategy for plant adaptation to arsenic (Castrillo et al. Plant Cell 2013; 25:2944).

In collaboration with other groups, we contributed to the identification of a phosphate sensor (Puga et al. Proc Natl Acad Sci USA 2014; 111:14947) and participated in the production of a collection of transgenic plants that conditionally express more than 600 transcription factors (Coego et al. Plant J 2014; 77:944). The research lines currently in progress in our laboratory will allow us to understand the mechanisms that underlie arsenic perception, which will open up new possibilities for phytoremediation of arsenic-contaminated soils and waters.

logolife150In collaboration with Dr Carlos Alonso Blanco from the CNB, we also study the application of natural isolates of duckweed aquatic plants for water phytoremediation. In particular, our lab is currently involved in the project “Duckweed technology for improving nutrient management and resource efficiency in pig” (www.life-lemna.eu) funded by the LIFE Programme of the European Commission (Grant number LIFE15 ENV/ES/000382). 

  memo fig 2

 

LeyvaGroup 

Name
Position
Contact
Antonio Leyva Tejada Principal investigator
Cristina Navarro Solaz Postdoctoral scientist
Cristian Mateo Elizalde Predoctoral student
Yolanda Leo del Puerto Technician
Álvaro Segovia San Benito Master's student
María García González Undergraduate student
Sarra Arbaoui Visiting scientist  

NOTE! This site uses cookies and similar technologies.

If you continue browsing or do not change browser settings, we consider your acepptance for using. Learn more

I understand

COOKIES POLICY

A cookie is a text file that is stored on your computer or mobile device via a web server and only that server will be able to retrieve or read the contents of the cookie and allow the Web site remember browser preferences and navigate efficiently. Cookies make the interaction between the user and the website faster and easier.

General information

This Website uses cookies. Cookies are small text files generated by the web pages you visit, which contain the session data that can be useful later in the website. In this way this Web remembers information about your visit, which can facilitate your next visit and make the website more useful.

How do cookies?

Cookies can only store text, usually always anonymous and encrypted. No personal information is ever stored in a cookie, or can be associated with identified or identifiable person.

The data allow this website to keep your information between the pages, and also to discuss how to interact with the website. Cookies are safe because they can only store information that is put there by the browser, which is information the user entered in the browser or included in the page request. You can not run the code and can not be used to access your computer. If a website encrypts cookie data, only the website can read the information.

What types of cookies used?

The cookies used by this website can be distinguished by the following criteria:

1. Types of cookies as the entity that manages:

Depending on who the entity operating the computer or domain where cookies are sent and treat the data obtained, we can distinguish:

- Own cookies: are those that are sent to the user's terminal equipment from a computer or domain managed by the editor itself and from which provides the service requested by the user.

- Third party cookies: these are those that are sent to the user's terminal equipment from a machine or domain that is not managed by the publisher, but by another entity data is obtained through cookies.

In the event that the cookies are installed from a computer or domain managed by the editor itself but the information collected by these is managed by a third party can not be considered as party cookies.

2. Types of cookies as the length of time that remain active:

Depending on the length of time that remain active in the terminal equipment can be distinguished:

- Session cookies: cookies are a type designed to collect and store data while the user accesses a web page. Are usually used to store information that only worth preserving for the service requested by the user at any one time (eg a list of products purchased).

- Persistent cookies: cookies are a type of data which are stored in the terminal and can be accessed and treated for a period defined by the head of the cookie, and can range from a few minutes to several years.

3. Cookies types according to their purpose:

Depending on the purpose for which the data are processed through cookies, we can distinguish between:

- Technical cookies: these are those that allow the user to navigate through a web page or application platform and the use of different options or services it exist as, for example, control traffic and data communication, identify the session, access to restricted access parts, remember the elements of an order, make the buying process an order, make an application for registration or participation in an event, use security features while browsing store content for dissemination videos or sound or share content via social networks.

- Customization cookies: these are those that allow the user to access the service with some general characteristics based on a predefined set of criteria in the user terminal would eg language, the type of browser through which you access the service, the locale from which you access the service, etc.

- Analysis cookies: they are those that allow the responsible for them, monitoring and analyzing the behavior of users of the web sites that are linked. The information gathered through such cookies are used in measuring the activity of web sites, application or platform and for the profiling of user navigation of such sites, applications and platforms, in order to make improvements function data analysis how users use the service.

Management tool cookies

This Website uses Google Analytics.

Google Analytics is a free tool from Google that primarily allows website owners know how users interact with your website. Also, enable cookies in the domain of the site in which you are and uses a set of cookies called "__utma" and "__utmz" to collect information anonymously and reporting of website trends without identifying individual users..

For statistics of use of this website use cookies in order to know the level of recurrence of our visitors and more interesting content. This way we can concentrate our efforts on improving the most visited areas and make the user more easily find what they are looking for. On this site you can use the information from your visit for statistical evaluations and calculations anonymous data and to ensure the continuity of service or to make improvements to their websites. For more details, see the link below privacy policy [http://www.google.com/intl/en/policies/privacy/]

How to manage cookies on your computer: disabling and deleting cookies

All Internet browsers allow you to limit the behavior of a cookie or disable cookies within settings or browser settings. The steps for doing so are different for each browser, you can find instructions in the help menu of your browser.

If you decline the use of cookies, since it is possible thanks to the preferences menu of your browser or settings, reject, this website will continue to function properly without the use of the same.

Can you allow, block or delete cookies installed on your computer by setting your browser options installed on your computer:

- For more information about Internet Explorer click here.
- For more information on Chrome click here.
- For more information about Safari click here.
- For more information about Firefox click here.

Through your browser, you can also view the cookies that are on your computer, and delete them as you see fit. Cookies are text files, you can open and read the contents. The data within them is almost always encrypted with a numeric key corresponding to an Internet session so often has no meaning beyond the website who wrote it.

Informed consent

The use of this website on the other hand, implies that you paid your specific consent to the use of cookies, on the terms and conditions provided in this Cookies Policy, without prejudice to the measures of deactivation and removal of cookies that you can take, and mentioned in the previous section.