Evaluation of photosynthetic performance of wheat cultivars exposed to boron toxicity by the JIP fluorescence test

Title:

Evaluation of photosynthetic performance of wheat cultivars exposed to boron toxicity by the JIP fluorescence test

Creator:

Öz, M. T., Turan, Ö., Kayihan, C., Eyidoğan, F., Ekmekçi, Y., Yücel, M., and Öktem, H. A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e9c9cf2a-3191-40dc-9ea3-4935b2007ab5
uuid:e9c9cf2a-3191-40dc-9ea3-4935b2007ab5
issn:0300-3604
doi:10.1007/s11099-014-0065-2

Subject:

fotosyntéza, pšenice, bor, photosynthesis, wheat, boron, chlorophyll fluorescence, fluorescence transient, performance index, Triticum aestivum L, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The changes in growth and photosynthetic performance of two wheat (Triticum aestivum L.) cultivars (Bolal-2973 and Atay-85) differing in their sensitivity to boron (B) toxicity were investigated under toxic B conditions. Eight-day old seedlings were exposed to highly toxic B concentrations (5, 7.5, and 10 mM H3BO3) for 5 and 9 days. Fast chlorophyll a fluorescence kinetics was determined and analysed using JIP test. Growth parameters, tissue B contents, and membrane damage were measured at two stress durations. The photochemical performance of PSII was hindered more in the sensitive cultivar (Atay-85) than that of the tolerant one (Bolal-2973) under B toxicity. The increase in the B concentration and stress duration caused membrane leakage in both cultivars. However, higher membrane damage was observed in Atay-85 compared to Bolal-2973. Additionally, significant reduction of growth parameters was observed in both cultivars at toxic B concentrations. The accumulation of B was higher in shoots than in roots of both cultivars. Nevertheless, Atay-85 translocated more B from roots to leaves compared to Bolal-2973. The advantages of certain JIP test parameters were demonstrated for evaluation of PSII activity in plants exposed to B stress. Evaluation of photosynthetic performance by JIP test as well as assessment of growth and tissue B content might be used to determine the effects of B toxicity in wheat. The results indicated lesser sensitivity to B toxicity in Bolal-2973 compared to Atay-85., M. T. Öz, Ö. Turan, C. Kayihan, F. Eyidoğan, Y. Ekmekçi, M. Yücel, H. A. Öktem., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

555-563

Source:

Photosynthetica | 2014 Volume:52 | Number:4

Harvested from:

CDK

Metadata only:

false