STUDY OF THE LIFE CYCLE OF PTERIS CRETICA L. AND THE IMPACTS OF ARSENIC ON THE GROWTH OF SPORE AND THE DISTINCTION OF SEXUAL ORGANS

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TAJADDOD GOLNAZ; MAJD AHMAD; MASOUMI SARA

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Journal: JOURNAL OF DEVELOPMENTAL BIOLOGY Year:2009 | Volume:1 | Issue:1 Page(s): 31-36

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Title

STUDY OF THE LIFE CYCLE OF PTERIS CRETICA L. AND THE IMPACTS OF ARSENIC ON THE GROWTH OF SPORE AND THE DISTINCTION OF SEXUAL ORGANS

Author(s)

TAJADDOD GOLNAZ | MAJD AHMAD | MASOUMI SARA | Issue Writer Certificate

Keywords

PTERIS CRETICA L.Q3

SPORE CULTUREQ3

LIFE CYCLEQ3

ARSENICQ2

Abstract

Pterisfern belongs to Pteridaceae family and Pteris cretica is one of the existing types in Iran. At the outset of the reproduction cycle, the fern creates the sores on the back side and margins of folioles.In this research, the fern’s spore underwent the process of culture in the soil and the stages of germination till the formation of protonema, the heart-shaped prothalli and distinction of sexual organs were evaluated. The growth of spore in the appropriate environment initially takes place in a single direction and forms the multi-cellular protonema through cellular division and later the protonema creates a broad and green cellular plain called prothalli. The asymmetrical division in the apical cells of prothalli leads to the formation of the sexual notch and the heart-shaped prothalli. The male sexual organs (antheridia) and later the female sexual organs (archegonium) are differentiated on the heartshapedprothalli.Arsenic is a toxic pollutant of the environment. The purification of water and soil that have been contaminated with ARSENIC can take place by using the existing engineering methods that are difficult and costly. Identification of Pteris fern and its species and the accumulation of ARSENIC in its frond led to the creation of phyto-remediation technology for decontaminating ARSENIC-contaminated places.By adding 0.001 gr/lit of ARSENIC, its impacts on the growth of spores and the distinction of the fern’s sexual organs were studied. Spores treated with ARSENIC grew slowly and the germination of protonema, prothalli and the distinction of the sexual organs took place with a delay.The result of the research indicated thatPteris fern can considerably absorb ARSENIC and prothallis exposed to ARSENIC are small and have a few sexual notches with low depth leading to the formation of several lobes. Part of the changes can be due to the increasing number of cells and their irregular divisions caused by ARSENIC.

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References

THE EFFECTS OF BETA CAROTENE ON GERMINATION OF SPORES, DEVELOPMENT OF PROTHALLI AND SEXUAL ORGANS INN ADIANTUM CAPILLUS - VENERIS

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APA: Copy

TAJADDOD, GOLNAZ, MAJD, AHMAD, & MASOUMI, SARA. (2009). STUDY OF THE LIFE CYCLE OF PTERIS CRETICA L. AND THE IMPACTS OF ARSENIC ON THE GROWTH OF SPORE AND THE DISTINCTION OF SEXUAL ORGANS. JOURNAL OF DEVELOPMENTAL BIOLOGY, 1(1), 31-36. SID. https://sid.ir/paper/193150/en

Vancouver: Copy

TAJADDOD GOLNAZ, MAJD AHMAD, MASOUMI SARA. STUDY OF THE LIFE CYCLE OF PTERIS CRETICA L. AND THE IMPACTS OF ARSENIC ON THE GROWTH OF SPORE AND THE DISTINCTION OF SEXUAL ORGANS. JOURNAL OF DEVELOPMENTAL BIOLOGY[Internet]. 2009;1(1):31-36. Available from: https://sid.ir/paper/193150/en

IEEE: Copy

GOLNAZ TAJADDOD, AHMAD MAJD, and SARA MASOUMI, “STUDY OF THE LIFE CYCLE OF PTERIS CRETICA L. AND THE IMPACTS OF ARSENIC ON THE GROWTH OF SPORE AND THE DISTINCTION OF SEXUAL ORGANS,” JOURNAL OF DEVELOPMENTAL BIOLOGY, vol. 1, no. 1, pp. 31–36, 2009, [Online]. Available: https://sid.ir/paper/193150/en

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