Chlorophyll a fluorescence induction: Can just a one-second measurement be used to quantify abiotic stress responses?

Stirbet, Alexandrina; Lazár, Dušan; Kromdijk, Johannes; Govindjee, .

doi:10.1007/s11099-018-0770-3

Cited by 364 publications

(299 citation statements)

References 156 publications

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“…PIABS, PItotal in HYLS and LYHS was higher, indicating a greater integral functional activity of PSII, PSI, and intersystem electron transport chain (Goltsev et al 2016). Generally, PIs was used to characterize plant resistance to various environmental stresses, and its sensitivity was higher than ΦPo (Stirbet et al 2018); however, PIs seemed not to determine grain yields individually. In the absence of environmental stress, parameters determining yield were the leaf area (assuming that the leaf thickness was consistent, the leaf dry mass determined the leaf area; Fig.…”

Section: Effect Of Leaf Color On Photosynthetic Characteristics Of Mamentioning

confidence: 99%

The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

Wang¹,

An²,

Li³

et al. 2019

Photosynt.

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Chlorophyll (Chl) is generally positively related to corn grain yields; however, light-leaf-colored maize may also achieve high yields. Thus, Chl is seemingly not a key parameter for maize producers. Modern maize cultivars (55) were divided into four types, based on grain yields and ear leaf SPAD readings. The results revealed that there was no correlation between the SPAD readings and corn grain yields across different maize cultivars. High-yield maize possessed higher nitrogen, phosphorus, and potassium accumulation and utilization compared to that of low-yield maize; the N-transport efficiency of low yield and high SPAD was the lowest among various types of maize. Under normal conditions, parameters determining the high yield of maize in a sequence was leaf dry mass, Chl fluorescence indices, and light absorption flux per leaf cross section. A higher absorption flux, accompanied by high energy dissipation ratios, reduced the difference of trapped transport flux between high-SPAD and low-SPAD maize at high yield levels. At the low yield level, a higher absorption flux per reaction center compensated for the loss of PSII reaction center numbers in low-SPAD maize.

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Section: Effect Of Leaf Color On Photosynthetic Characteristics Of Mamentioning

confidence: 99%

The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

Wang¹,

An²,

Li³

et al. 2019

Photosynt.

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“…and Stirbet, Laz ar, Kromdijk, and Govindjee (2018). In summary, during the first second of exposure to light of a dark-acclimated leaf sample, the chlorophyll fluores-cence rises in a polyphasic shape.…”

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confidence: 93%

Causes of reduced leaf‐level photosynthesis during strong El Niño drought in a Central Amazon forest

Santos

Ferreira

Rodrigues

et al. 2018

Global Change Biology

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Sustained drought and concomitant high temperature may reduce photosynthesis and cause tree mortality. Possible causes of reduced photosynthesis include stomatal closure and biochemical inhibition, but their relative roles are unknown in Amazon trees during strong drought events. We assessed the effects of the recent (2015) strong El Niño drought on leaf-level photosynthesis of Central Amazon trees via these two mechanisms. Through four seasons of 2015, we measured leaf gas exchange, chlorophyll a fluorescence parameters, chlorophyll concentration, and nutrient content in leaves of 57 upper canopy and understory trees of a lowland terra firme forest on well-drained infertile oxisol. Photosynthesis decreased 28% in the upper canopy and 17% in understory trees during the extreme dry season of 2015, relative to other 2015 seasons and was also lower than the climatically normal dry season of the following non-El Niño year. Photosynthesis reduction under extreme drought and high temperature in the 2015 dry season was related only to stomatal closure in both upper canopy and understory trees, and not to chlorophyll a fluorescence parameters, chlorophyll, or leaf nutrient concentration. The distinction is important because stomatal closure is a transient regulatory response that can reverse when water becomes available, whereas the other responses reflect more permanent changes or damage to the photosynthetic apparatus. Photosynthesis decrease due to stomatal closure during the 2015 extreme dry season was followed 2 months later by an increase in photosynthesis as rains returned, indicating a margin of resilience to one-off extreme climatic events in Amazonian forests.

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“…Recently, in addition to the costly biochemical analysis, the analyses of Chl fluorescence signals have been used as a quick, reliable, powerful, and simple tool to provide information about the status of PSII and for assessment of photosynthetic electron transport (Kalaji et al 2014, Osório et al 2014, Stirbet et al 2018. Chl fluorescence, produced by the Chl molecule after excitation by light, is a nondestructive biomarker for the assessment of stress effects on PSII (Strasser et al 2000).…”

Section: Introductionmentioning

confidence: 99%

“…The shape of the O-J-I-P curve may be changed during stress conditions (Xia et al 2004). The JIP-test is highly used for the response of plant species to stress conditions (Percival and Henderson 2003, Kalaji et al 2011, Stirbet et al 2018. Salinity and drought decreased maximal variable fluorescence (Fv) and maximal quantum yield of PSII photochemistry (Fv/Fm) and increased maximal fluorescence of the dark-adapted state (Fm) and minimal fluorescence yield of the darkadapted state (F0) (Zhao et al 2007).…”

Section: Introductionmentioning

confidence: 99%

How glycine betaine induces tolerance of cucumber plants to salinity stress?

Estaji¹,

Kalaji²,

Karimi³

et al. 2019

Photosynt.

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The mechanism of osmoprotectant action on photosynthesis process is still not well known, especially under salt stress. The objective of this study was to evaluate and explain the effect of glycine betaine (GB) on photosynthetic efficiency and other physiological parameters of cucumber plants grown under salinity stress. Our results indicated that salinity decreased chlorophyll and carotenoids content, Ca 2+ and K + concentrations, and quantum yield parameters, such as probability that a trapped exciton moves an electron in to the electron transport chain beyond QA, quantum yield of electron transport from QA to QB in PSII, quantum yield of reduction of end electron acceptors in PSI, performance index for the photochemical activity, total performance index for the photochemical activity, trapping per reaction centers, and other parameters related to primary photochemical reactions of PSII. However, the exogenously applied GB increased most of tested parameters including the total soluble carbohydrate, proline and GB content, and Ca 2+ and K + concentrations, under salt stress. We suggest that GB can play an essential role as regulator to improve photosynthetic efficiency and thus yield of cucumber plants under salt stress conditions. At the level of photosynthesis process, the application of exogenous GB indirectly enhanced the performance of the photosynthetic machinery of cucumber plant due to the reduction of the dissipated light energy, as heat, and the increase of primary reactions of photosynthesis efficiency. Abbreviations: Chl -chlorophyll; DM -dry mass; ET0/RC -electron transport flux per RC; F0 -minimal fluorescence yield of the dark-adapted state; Fm -maximal fluorescence of the dark-adapted state FM -fresh mass; Fv -maximal variable fluorescence; Fv/Fm -maximal quantum yield of PSII photochemistry; GB -glycine betaine; PIabs -performance index for the photochemical activity; PItot -total performance index for the photochemical activity; RC -reaction center; SM -normalized area (related to the number of electron carriers per electron transport chain); TChl -total chlorophyll; TR0/RC -trapped energy flux per RC; TSC -total soluble carbohydrate; VI -relative variable fluorescence at I-step (30 ms after the start of actinic light pulse); VJ -relative variable fluorescence at J-step (2 ms after the start of actinic light pulse); ΦDo -quantum yield of energy dissipation; φET20 -quantum yield of electron transport from QA to QB in PSII; ΦPo -maximum quantum yield of primary PSII photochemistry; ΦRE10 -quantum yield of reduction of end electron acceptors in PSI; Ψ0 -probability that a trapped exciton moves an electron in to the electron transport chain beyond QA.

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Chlorophyll a fluorescence induction: Can just a one-second measurement be used to quantify abiotic stress responses?

Cited by 364 publications

References 156 publications

The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

Causes of reduced leaf‐level photosynthesis during strong El Niño drought in a Central Amazon forest

How glycine betaine induces tolerance of cucumber plants to salinity stress?

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