EFFECTS INOCULATION WITH TWO STRAIN OF RHIZOBIUM ON ANATOMICAL INDEXES OF PERSIAN CLOVER (TRIFOLIUM RESUPINATUM) UNDER SO2 POLLUTION

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ASKARY M.; BAYAT L.

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Journal: JOURNAL OF CELL & TISSUE Year:2013 | Volume:4 | Issue:3 Page(s): 261-273

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Title

EFFECTS INOCULATION WITH TWO STRAIN OF RHIZOBIUM ON ANATOMICAL INDEXES OF PERSIAN CLOVER (TRIFOLIUM RESUPINATUM) UNDER SO2 POLLUTION

Author(s)

ASKARY M. | BAYAT L. | Issue Writer Certificate

Keywords

ANATOMICAL PARAMETERSQ2

CLOVERQ2

RHIZOBIUMQ2

SO2 POLLUTIONQ3

Abstract

Aim: The aim of this study was to evaluate the effects of rhizobial inoculation on the ANATOMICAL PARAMETERS of CLOVER under SO2 pollution.Material and methods: 31 day-old plants (no-inoculated and inoculated with two strains of RHIZOBIUM) exposed to the different concentrations of SO2 (0 as a control, 0.5, 1, 1.5 and 2 ppm) for 5 consecutive days for 2 hours per day. The ANATOMICAL PARAMETERS of 40 day-old plants were Then investigated.Results: Under high SO2 concentrations (1, 1.5 and 2ppm), length of the palisade cells and diameter of the spongy cells decreased in both leaf surfaces. Stomatal density decreased in adaxial epidermis and increased in abaxial epidermis. Also, stomatal opening increased in adaxial epidermis and decreased in abaxial epidermis. Trichome density in both leaf surfaces significantly increased in 1.5 and 2ppm SO2 compared with control plants. Under 2 ppm, trichome length increased significantly in both leaf surfaces. Inoculation of CLOVER with two strains of RHIZOBIUM significantly reduced the negative effects of high SO2 concentration.Conclusion: The results indicate the negative effects of high concentrations of SO2 air pollution on the some ANATOMICAL PARAMETERS and the positive effects of bacterial inoculation on resistance to air SO2 pollution stress.

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