Tipburn in salt-affected lettuce (Lactuca sativa L.) plants results from local oxidative stress

Carassay, Luciano Raúl; Bustos, Dolores; Golberg, Alberto D.; Taleisnik, Edith

doi:10.1016/j.jplph.2011.10.004

Cited by 30 publications

(9 citation statements)

References 60 publications

(69 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They may have deep green and more succulent leaves with more density and thickness [6]. However, when excess salinity induces imbalances in concentrations of certain mineral elements, such as Cl, Na, B or Ca, necrosis, chlorosis and tip burn can appear in the leaves [7][8][9]. Marginal necrosis is a typical foliar symptom in plants suffering from salinity stress [10,11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hyperspectral Imaging to Evaluate the Effect of IrrigationWater Salinity in Lettuce

et al. 2016

View full text Add to dashboard Cite

Salinity is one of the most important stress factors in crop production, particularly in arid regions. This research focuses on the effect of salinity on the growth of lettuce plants; three solutions with different levels of salinity were considered and compared (S1 = 50, S2 = 100 and S3 = 150 mM NaCl) with a control solution (Ct = 0 mM NaCl). The osmotic potential and water content of the leaves were measured, and hyperspectral images of the surfaces of 40 leaves (10 leaves per treatment) were taken after two weeks of growth. The mean spectra of the leaves (n = 32,000) were pre-processed by means of a Savitzky-Golay algorithm and standard normal variate normalization. Principal component analysis was then performed on a calibration set of 28 mean spectra, yielding an initial model for salinity effect detection. A second model was subsequently proposed based on an index computing an approximation to the second derivative at the red edge region. Both models were applied to all the hyperspectral images to obtain the corresponding artificial images, distinguishing between the 28 that were used to extract the calibration mean spectra and the rest that constituted an external validation. Those virtual images were studied using analysis of variance in order to compare their ability for detecting salinity effects on the leaves. Both models showed significant differences between each salinity level, and the hyperspectral images allowed observations of the distribution of the salinity effects on the leaf surfaces, which were more intense in the areas distant from the veins. However, the index-based model is simpler and easier to apply because it is based solely on the reflectance at three different wavelengths, thus allowing for the implementation of less expensive multispectral devices.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Marginal necrosis is a typical foliar symptom in plants suffering from salinity stress [10,11]. In lettuce, tip burn is a physiological disorder displayed as necrosis in the margins of young developing leaves and is commonly observed under saline conditions [9,12].…”

Section: Introductionmentioning

confidence: 99%

Hyperspectral Imaging to Evaluate the Effect of IrrigationWater Salinity in Lettuce

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The decrease in calcium content due to salinity can produce physiological disorders in lettuce leaves, like tipburn. Tipburn appears as a necrosis in the margins of young developing lettuce leaves under saline conditions (Carassay et al, 2012). …”

Section: Effects Of Salinity On Ionic Balancementioning

confidence: 99%

“…In lettuce, tip burn is a physiological disorder displayed as necrosis in the margins of young developing leaves and is commonly observed under saline conditions (Saure, 1998;Carassay et al 2012). In lettuce, these symptoms have recently been associated with local oxidative stress in leaf margins that appear before symptom expression (Carassay et al, 2012).…”

Section: Application Of the Models On The Validation Setmentioning

confidence: 99%

“…They may have deep green and more succulent leaves with more density and thickness (Maas and Hoffman, 1977). However, when excess salinity induces imbalances in concentrations of certain mineral elements, such as Cl, Na, B or Ca, necrosis, chlorosis and tip burn can appear in the leaves (Bie et al, 2004;Eraslan et al, 2007;Carassay et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hyperspectral image applied to determine quality parameters in leafy vegetables

Lara¹,

Ángel²

View full text Add to dashboard Cite

MASTER IN AGRO-ENGINEERING CO-SUPERVISOR: BELÉN DIEZMA IGLESIAS CO-SUPERVISOR: LOURDES LLEÓ GARCÍA MADRID, 2016He nacido hoy de madrugada, viví AGRADECIMIENTOS -ACKNOWLEDGEMENTSDesde que comencé este reto que ha sido la tesis doctoral, muchas cosas han cambiado. No ha sido un camino fácil. Muchas horas de esfuerzo y dedicación. Cambios que han puesto patas arriba mis metas y aspiraciones. Tener que reinventarse, volver a empezar, adaptarse a los cambios… Por suerte, no estoy solo en el camino. Muchas personas me lo han demostrado en este tiempo y me gustaría agradecérselo en estas líneas.Quisiera dar las gracias de forma muy especial a mis tutoras, Belén Diezma Iglesias y Lourdes Lleó García, por toda la ayuda prestada a lo largo de estos años. Por su supervisión, apoyo y empuje. Para mí han sido más que tutoras, amigas, y su empuje y ánimo han sido determinantes para que hoy pueda escribir este párrafo. Gracias de corazón y ojalá podamos seguir colaborando en el futuro.Special thanks also to Jean Michel Roger for his unconditional support and technical advice in this research, and also for his assistance during my stay in CEMAGREF, now IRSTEA, Montpellier (France). It is always a great pleasure working with him.A todas las personas que componen el grupo de investigación LPF-TAGRALIA. Me he sentido muy a gusto trabajando con vosotros y en los momentos que hemos compartido. Ojalá hubieran podido ser muchos más. En especial, quisiera agradecer su ayuda y apoyo a Margarita Ruiz-Altisent y a Pilar Barreiro Elorza, siempre dispuestas a compartir su conocimiento. Podéis contar conmigo cuando lo necesitéis.Al Ministerio de Ciencia e Innovación (MICINN) que ha financiado los trabajos de investigación llevados a cabo en esta tesis doctoral con los proyectos Multihort (AGL2008-05666-C02-01) y QualityLeaf (AGL2013-48529-R), junto con el proyecto Durasfrut II (AL11-P(I+D)-06) de la Universidad Politécnica de Madrid.A María Isabel Gil y Yolanda Garrido, del Centro de Edafología y Biología Aplicada del Segura, perteneciente al Consejo Superior de Investigaciones Científicas (CEBAS-CSIC), por su colaboración y ayuda en la generación de muestras y en la interpretación de resultados de una parte fundamental de este trabajo.A mis antiguos compañeros de la Escuela de Ingeniería Técnica Agrícola que se preocuparon por mí y me apoyaron en momentos muy difíciles. En especial, me gustaría dar las gracias a las profesoras Eva Cristina Correa Hernando y Virginia Díaz Barcos, que se volcaron en ayudarme en aquellos momentos y, gracias a ellas, pude encontrar pronto un nuevo reto profesional. Os estaré siempre agradecido.A mi familia. A mis padres y hermanos. A los amigos que han sido conscientes de este duro camino y se han preocupado por mí, dándome ánimos. A Devin Townsend por haber sido la banda sonora de esta Tesis Doctoral.A mi mujer, Laura, porque sus pasos han sido mi inspiración para decidirme a cumplir este reto. Todo llega y, no me cabe duda, nuestro trabajo también tendrá su recompensa.A Alicia, porque aún no lo sabe, pero...

show abstract

Effects of air temperature and air flow rate control on the tipburn occurrence of leaf lettuce in a closed-type plant factory system

Lee

Choi

Jang

et al. 2013

Hortic. Environ. Biotechnol.

View full text Add to dashboard Cite

Tipburn in salt-affected lettuce (Lactuca sativa L.) plants results from local oxidative stress

Cited by 30 publications

References 60 publications

Hyperspectral Imaging to Evaluate the Effect of IrrigationWater Salinity in Lettuce

Hyperspectral Imaging to Evaluate the Effect of IrrigationWater Salinity in Lettuce

Hyperspectral image applied to determine quality parameters in leafy vegetables

Effects of air temperature and air flow rate control on the tipburn occurrence of leaf lettuce in a closed-type plant factory system

Contact Info

Product

Resources

About