Linking leaf chlorophyll fluorescence properties to physiological responses for detection of salt and drought stress in coastal plant species

Naumann, Julie C; Young, Donald R.; Anderson, John E.

doi:10.1111/j.1399-3054.2007.00973.x

Cited by 93 publications

(59 citation statements)

References 44 publications

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“…In our study, F v /F m measured at T1 and T2 did not show significant differences between control and stress treatments (data not shown). Other studies showed little or no effect on F v /F m (Lee et al 2004;Naumann et al 2007;Niu et al 2010;) even when leaf growth and gas exchange were reduced. Fig.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of some pepper genotypes as rootstocks in water stress conditions

Penella¹,

Nebauer²,

López-Galarza³

et al. 2014

Hortic. Sci.

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Penella C., Nebauer S.G., López-Galarza S., SanBautista A., Rodríguez-Burruezo A., Calatayud A., 2014. Evaluation of some pepper genotypes as rootstocks in water stress conditions. Hort. Sci. (Prague), 41: 192-200.Water stress is a major environmental factor that limits crop production and it is important to develop crop varieties with higher yield under water scarcity. Increased pepper tolerance to water stress through grafting onto robust rootstocks could be an optimal alternative in the context of environmentally friendly agriculture. Our work evaluated the behaviour of 18 pepper genotypes during vegetative and reproductive stages under water stress in order to select tolerant genotypes to be used as rootstocks for pepper cultivation. The pepper tolerance screening was based on photosynthetic parameters. The genotypes Atlante, C-40, Serrano, PI-152225, ECU-973, BOL-58 and NuMex Conquistador were revealed as the most tolerant genotypes to water stress because they maintained net photosynthetic rate levels under water stress conditions. The selected genotypes were validated as rootstocks on a pepper cultivar in terms of productivity under severe water stress. Plants grafted onto cvs Atlante, PI-152225 and ECU-973 showed higher marketable yields when compared with ungrafted cultivar.

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Section: Methodsmentioning

confidence: 99%

Evaluation of some pepper genotypes as rootstocks in water stress conditions

Penella¹,

Nebauer²,

López-Galarza³

et al. 2014

Hortic. Sci.

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“…The ChlF signal can provide critical information about the growth status of plants, and therefore it has been used as an effective tool to monitor plant stress induced by air pollution [25,26], water deficit [28,29], herbicide treatment [2], and salt and drought [30]. Quantitative estimation of the fluorescence parameters for crop leaves would be of high importance in assessing the photosynthetic rates of green plants and monitoring the stress conditions of crops.…”

Section: Potential and Limitations Of Applying Model Inversion For Thmentioning

confidence: 99%

Quantitative Estimation of Fluorescence Parameters for Crop Leaves with Bayesian Inversion

et al. 2015

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Abstract:In this study, backward and forward fluorescence radiance within the emission spectrum of 640-850 nm were measured for leaves of soybean, cotton, peanut and wheat using a hyperspectral spectroradiometer coupled with an integration sphere. Fluorescence parameters of crop leaves were retrieved from the leaf hyperspectral measurements by inverting the FluorMODleaf model, a leaf-level fluorescence model able to simulate chlorophyll fluorescence spectra for both sides of leaves. This model is based on the widely used and validated PROSPECT (leaf optical properties) model. Firstly, a sensitivity analysis of the FluorMODleaf model was performed to identify and quantify influential parameters to assist the strategy for the inversion. Implementation of the Extended Fourier Amplitude Sensitivity Test (EFAST) method showed that the leaf chlorophyll content and the OPEN ACCESSRemote Sens. 2015, 7 14180 fluorescence lifetimes of photosystem I (PSI) and photosystem II (PSII) were the most sensitive parameters among all eight inputs of the FluorMODleaf model. Based on results of sensitivity analysis, the FluorMODleaf model was inverted using the leaf fluorescence spectra measured from both sides of crop leaves. In order to achieve stable inversion results, the Bayesian inference theory was applied. The relative absorption cross section of PSI and PSII and the fluorescence lifetimes of PSI and PSII of the FluorMODleaf model were retrieved with the Bayesian inversion approach. Results showed that the coefficient of determination (R 2 ) and root mean square error (RMSE) between the fluorescence signal reconstructed from the inverted fluorescence parameters and measured in the experiment were 0.96 and 3.14 × 10 −6 W· m −2 · sr −1 · nm −1 , respectively, for backward fluorescence, and 0.92 and 3.84 × 10 −6 W· m −2 · sr −1 · nm −1 for forward fluorescence. Based on results, the inverted values of the fluorescence parameters were analyzed, and the potential of this method was investigated.

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“…Se trata de un méto-do no destructivo y muy sensible, capaz de detectar alteraciones en la etapa fotoquímica, antes de que la planta muestre síntomas visibles (Naumann, Young & Anderson, 2007).…”

Section: Introductionunclassified

Nutrición mineral y fotosíntesis en plántulas de algarrobo blanco, Prosopis alba (Fabaceae), en estrés salino

Meloni¹,

Silva²,

Ledesma³

et al. 2017

URJ

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El algarrobo blanco (Prosopis alba G.) es una especie nativa de la región fitogeográfica del Chaco Occidental. Pese a que es considerada tolerante a la salinidad, los mecanismos fisiológicos que le confieren dicha característica no han sido dilucidados. Este trabajo tuvo como objetivo evaluar el impacto del estrés salino sobre la nutrición mineral y la fotosíntesis, en plántulas de algarrobo blanco. Las plántulas se cultivaron hidropónicamente con o sin la suplementación de 500 mM de NaCl. Se realizaron mediciones de emisión de fluorescencia de la clorofila a, y se cuantificaron las concentraciones de Na+, K+, Cl-, NO3- y la actividad nitrato reductasa (ANR). Luego de 7 días de tratamiento se determinó la biomasa de raíces y hojas. Se utilizó un diseño experimental completamente aleatorizado, con 10 repeticiones y los datos se analizaron con ANOVA y Test de Tukey. El estrés salino inhibió el crecimiento de la parte aérea y no afectó el crecimiento radicular. La salinidad aumentó las concentraciones foliares de Na+ y Cl-, y disminuyó las concentraciones de K+ y NO3- y la ANR. También se observó una disminución en los valores de qP, Fv/Fm y ETR, con un aumento en NPQ, demostrando que el estrés salino produjo fotoinhibición.

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Linking leaf chlorophyll fluorescence properties to physiological responses for detection of salt and drought stress in coastal plant species

Cited by 93 publications

References 44 publications

Evaluation of some pepper genotypes as rootstocks in water stress conditions

Evaluation of some pepper genotypes as rootstocks in water stress conditions

Quantitative Estimation of Fluorescence Parameters for Crop Leaves with Bayesian Inversion

Nutrición mineral y fotosíntesis en plántulas de algarrobo blanco, Prosopis alba (Fabaceae), en estrés salino

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