Enhanced Activity of Microsymbiont-Alfalfa System Probed by the Fast Fluorescence Rise OJIP

Köves-Péchy, K.; Bíró, Borbála; Willis, Isaac; Takács, T.; Osztoics, Erzsébet; Strasser, Reto J.

doi:10.1007/978-94-011-3953-3_652

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…This suggests that biophysical phenotyping can be used for the evaluation of the vitality and growth promotion of plants. Our study confirms the beneficial role of endophytes (mycobionts) on PSII of Zea mays (photobiont), in accord with earlier findings (Romano et al 1996;Kö ves-Péchy et al 1998;Calantzis et al 1999Calantzis et al , 2000TsimilliMichael et al 2000). It can be concluded that the JIP test is a rapid and non-destructive technique that can be applied for evaluating the effectiveness of mycorrhization.…”

Section: Resultssupporting

confidence: 95%

JIP test for fast fluorescence transients as a rapid and sensitive technique in assessing the effectiveness of arbuscular mycorrhizal fungi inZea mays: Analysis of chlorophyllafluorescence

Rai

Shende

Strasser

2008

Plant Biosystems - An International Journal Dealing with all As

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We applied chlorophyll a fluorescence as a biomarker to assess the growth enhancement of maize plants after inoculation with the mycorrhizal fungi Piriformospora indica, Glomus mosseae, or a mixed culture (P. indica, G. mosseae and G. caledonium), and compared it with uninoculated plants (controls). The quantum efficiencies for pigment system II (j Po) were not much affected. The yield for electron flow (j Eo ¼ j Po * co) was highly responsive to P. indica and mixed culture. Electron transport per trapping center (co) was remarkably influenced by the endophytes. Plants treated with P. indica and mixed culture showed relatively higher quantum yield compared to uninoculated plants. Absorption per reaction center was influenced by the endophytes. Piriformospora indica followed by mixed inoculum showed slightly lower values as compared to controls. The morphological markers, namley height of the plants and percentage colonization in the roots, reflected the biophysiological markers (chlorophyll a fluorescence); hence, the JIP test (a test applied to analyze fast fluorescence kinetics O-J-I-P) can be used as a sensitive and rapid tool for determining the efficiency of mycorrhizal fungi in host plants.

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Section: Resultssupporting

confidence: 95%

JIP test for fast fluorescence transients as a rapid and sensitive technique in assessing the effectiveness of arbuscular mycorrhizal fungi inZea mays: Analysis of chlorophyllafluorescence

Rai

Shende

Strasser

2008

Plant Biosystems - An International Journal Dealing with all As

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“…Photosynthesis is one of the most heat‐sensitive processes in plants, leading to numerous changes in structure and function of the photosynthetic apparatus. Elevated temperature‐induced detrimental effects are manifested in reduced photosynthetic metabolism (Koves Pechy et al. 1998), photosynthetic capacity and photochemical efficiency (Percival 2005).…”

Section: Introductionmentioning

confidence: 99%

Analysis of elevated temperature‐induced inhibition of photosystem II using chlorophyll a fluorescence induction kinetics in wheat leaves (Triticum aestivum)

et al. 2010

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Wheat is the major crop plant in many parts of the world. Elevated temperature-induced changes in photosynthetic efficiency were studied in wheat (T. aestivum) leaves by measuring Chl a fluorescence induction kinetics. Detached leaves were subjected to elevated temperature stress of 35 °C, 40 °C or 45 °C. Parameters such as Fv/Fm, performance index (PI), and reaction centre to absorbance ratio (RC/ABS) were deduced using radial plots from fluorescence induction curves obtained with a plant efficiency analyser (PEA). To derive precise information on fluorescence induction kinetics, energy pipeline leaf models were plotted using biolyzer hp3 software. At 35 °C, there was no effect on photosynthetic efficiency, including the oxygen-evolving complex, and the donor side of PSII remained active. At 40 °C, activity was reduced by 14%, while at 45 °C, a K intermediate step was observed, indicating irreversible damage to the oxygen-evolving complex. This analysis can be used to rapidly screen for vitality and stress tolerance characteristics of wheat growing in the field under high temperature stress.

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“…The analysis of the fluorescence transient O-J-I-P by the JIP-test is also used to see the effects of mycorrhization on the behaviour and performance of the photosynthetic apparatus (Romano et al 1996;Köves-Péchy et al 1999;Calantzis et al 2000). These studies demonstrate the beneficial role of the mycorrhizal symbiosis on the photosystem II activity by increased values of various activities and/or performance parameters.…”

Section: Plant Fitness Parameters Chlorophyll Fluorescence Techniquesmentioning

confidence: 99%

Role of Beneficial Microsymbionts on the Plant Performance and Plant Fitness

Bíró¹,

Köves-Péchy²,

Tsimilli‐Michael

et al. 2006

Soil Biology

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Enhanced Activity of Microsymbiont-Alfalfa System Probed by the Fast Fluorescence Rise OJIP

Cited by 6 publications

References 9 publications

JIP test for fast fluorescence transients as a rapid and sensitive technique in assessing the effectiveness of arbuscular mycorrhizal fungi inZea mays: Analysis of chlorophyllafluorescence

JIP test for fast fluorescence transients as a rapid and sensitive technique in assessing the effectiveness of arbuscular mycorrhizal fungi inZea mays: Analysis of chlorophyllafluorescence

Analysis of elevated temperature‐induced inhibition of photosystem II using chlorophyll a fluorescence induction kinetics in wheat leaves (Triticum aestivum)

Role of Beneficial Microsymbionts on the Plant Performance and Plant Fitness

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