In vivo Assessment of Stress Impact on Plant’s Vitality: Applications in Detecting and Evaluating the Beneficial Role of Mycorrhization on Host Plants

Tsimilli‐Michael, Merope; Strasser, Reto J.

doi:10.1007/978-3-540-78826-3_32

Cited by 210 publications

(172 citation statements)

References 28 publications

Supporting

Mentioning

158

Contrasting

Unclassified

Order By: Relevance

“…P deficiency also has a negative impact on NADPH regeneration, reduces the quantum yield and carboxylic efficiency of photosynthesis and the electron transport efficiency (Wu et al 2006). The JIP-test has been successfully used to estimate the activity/efficiency of PSII in plants exposed to phosphorus deficiency stress (Kruger et al 1997;Tsimilli-Michael and Strasser 2008). Indeed, various studies have demonstrated a correlation between JIP-test parameters and gas exchange orplant growth parameters (Strasser et al 2000).…”

Section: Nutrient Deficiency Stressmentioning

confidence: 99%

Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions

et al. 2016

View full text Add to dashboard Cite

Plants living under natural conditions are exposed to many adverse factors that interfere with the photosynthetic process, leading to declines in growth, development, and yield. The recent development of Chlorophyll a fluorescence (ChlF) represents a potentially valuable new approach to study the photochemical efficiency of leaves. Specifically, the analysis of fluorescence signals provides detailed information on the status and function of Photosystem II (PSII) reaction centers, lightharvesting antenna complexes, and both the donor and acceptor sides of PSII. Here, we review the results of fast ChlF analyses of photosynthetic responses to environmental stresses, and discuss the potential scientific and practical applications of this innovative methodology. The recent availability of portable devices has significantly expanded the potential utilization of ChlF techniques, especially for the purposes of crop phenotyping and monitoring.

show abstract

Section: Nutrient Deficiency Stressmentioning

confidence: 99%

Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The coloration in the leaf models indicates the pigment concentration per cross section (ABS/CSo). High temperature as well as high salt concentration caused a decrease in the Chl content per leaf area (ABS/CSo) (Misra et al 2001;Tsimilli-Micheal and Strasser 2008) which is shown by the intensity of the light green color of the wheat leaves (Fig. 4).…”

Section: Intermediate Effects Of Dual Stressmentioning

confidence: 99%

Effects of dual stress (high salt and high temperature) on the photochemical efficiency of wheat leaves (Triticum aestivum)

Mathur

Mehta

Jajoo

2012

Physiol Mol Biol Plants

View full text Add to dashboard Cite

In this study, we have focused on those components of Photosystem (PS) II which are significantly affected by dual stress (high salt and temperature) on wheat as measured by Plant Efficiency Analyser (PEA). It was observed that some of the chlorophyll a fluorescence parameters were temperature dominated, while some other parameters were salt dominated. We have also observed additive effects for parameters like antenna size heterogeneity. An important observation was that in high temperature alone, the K-step was observed at 40°C, while in case of dual stress, the K-step was observed at 45°C, while the Chl a fluorescence transient of 40°C+0.5 MNaCl was quite similar to 35°C transient curve. In the presence of salt, Kstep was observed at higher temperature suggesting a protection of OEC by salt. Plants are under dual stress, but effect of temperature stress is less severe in presence of salt stress. Thus, we can say that salt stress caused partial prevention from high temperature stress but it did not cause complete protection of PS II.

show abstract

“…The following parameters were calculated per excited leaf cross-section (CS m ): PI (overall performance index of PSII photochemistry), DI o /CS m (energy amount dissipated from PSII), RC/CS m (number of active reaction centers), ET o /CS m (amount of energy used for the electron transport) and TR o /CS m (amount of excitation energy trapped in PSII reaction centers), ψR o (probability, at time 0, that a trapped exciton moves an electron into the electron transport chain beyond Q A − ), δR o (the efficiency with which an electron can move from the reduced intersystem of electron acceptors to the PSI end electron acceptors), φR o (the quantum yield of electron transport from Q A − to the PSI end electron acceptors). Calculations for the parameters were based on the theory of energy flow in PSII using the JIP test (Strasser and TsimilliMichael 2001;Tsimilli-Michael and Strasser 2008;Strasser et al 2010). Chlorophyll fluorescence measurements of the flag leaves were performed with a fluorometer FMS 2 (Hansatech Instruments, Kings Lynn, UK).…”

Section: Chlorophyll Fluorescence Measurementsmentioning

confidence: 99%

Rapid plant rehydration initiates permanent and adverse changes in the photosynthetic apparatus of triticale

Hura

Ostrowska

et al. 2015

Plant Soil

View full text Add to dashboard Cite

Background and aims The reasons for partial recovery after a soil drought are not fully understood and have not been studied so far. This study investigated the physiological and biochemical responses of triticale cultivars with differential recovery ability after soil water deficit. Methods Activity of the photosynthetic apparatus under soil drought followed by rehydration was estimated. Plant antioxidant potential was determined based on the measurement of catalase and peroxidase activity. The levels of hydrogen peroxide and superoxide radical were assessed. Results Under rehydration, the not fully-recovered cultivar experienced further significant increase in the content of H 2 O 2 and inhibited activity of the photosynthetic apparatus, as compared to the drought period. On 42 nd day of the rehydration, the not fully-recovered cultivar showed also a reduced photosynthetic activity in the flag leaves, which resulted in a significant decrease in its grain yield. The first week of a rapid rehydration involved a decrease in total peroxidase and catalase activities. The increased content of H 2 O 2 was compensated only when leaf water content was gradually restored in the first week of the rehydration and no further decrease in the activity of the photosynthetic apparatus was noticed. Conclusions A destructive effect of the rapid rehydration was manifested in an intensification of the physiological processes associated with reactive oxygen species (ROS) overproduction. An important cause of hydrogen peroxide overproduction seems to be the electron leakage due to overloading of the electron transport chain (ETC) in the PSI and PSII.

show abstract

In vivo Assessment of Stress Impact on Plant’s Vitality: Applications in Detecting and Evaluating the Beneficial Role of Mycorrhization on Host Plants

Cited by 210 publications

References 28 publications

Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions

Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions

Effects of dual stress (high salt and high temperature) on the photochemical efficiency of wheat leaves (Triticum aestivum)

Rapid plant rehydration initiates permanent and adverse changes in the photosynthetic apparatus of triticale

Contact Info

Product

Resources

About