جلد 14، شماره 67 - ( جلد 14، شماره 67، مرداد و شهریور 1404 )
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Ghasemi R, Salehi Mobarekeh T, Esmaeili Abhari M. A comparative investigation of nickel hyperaccumulation and local adaptation in some of the Alyssum species. Plant Process and Function 2025; 14 (67) : 8
URL: http://jispp.iut.ac.ir/article-1-2086-fa.html
URL: http://jispp.iut.ac.ir/article-1-2086-fa.html
Ghasemi Rasoul، Salehi Mobarekeh Tayebeh، Esmaeili Abhari Maedeh. A comparative investigation of nickel hyperaccumulation and local adaptation in some of the Alyssum species. فرآیند و کارکرد گیاهی. 1404; 14 (67) :85-96
1- Department of Biology, Faculty of Sciences, Payam Noor University, Tehran, Iran ، rsl_ghsm@yahoo.com
2- Department of Biology, Faculty of Sciences, Payam Noor University, Center of Isfahan, Iran
2- Department of Biology, Faculty of Sciences, Payam Noor University, Center of Isfahan, Iran
چکیده: (71 مشاهده)
The relationship between the physiological nickel hyperaccumulation character, endemism in serpentine soils, tolerance indices, and karyotype differences of some accessions of nickel hyperaccumulator and non-accumulator of the genus Alyssum from serpentine and non-serpentine soils was investigated. Karyotypes were obtained from prometaphase and metaphase analysis maps by root meristem chromosomal staining. Physiological responses to nickel in the medium, including catalase activity as an indicator of iron accessibility, and photosynthetic pigments were measured. Karyotype of diploid species, 2n=2x=16, 20 and 22, was determined that the type of chromosomes are metacentric, submetacentric, acrocentric and telocentric. The results of chromosomes’ character analysis, such as chromosome asymmetry coefficient, showed a significant difference between these species in terms of various characters. The examination of the morphology of chromosomes revealed that species with more diverse chromosome types and superior chromosomal characteristics, such as secondary constriction, having the least metacentric chromosome, low centromeric index, and more asymmetric karyotype, were not nickel hyperaccumulators. Other data showed a decreased tolerance capacity of the non-serpentine plants via adaptation to normal soils. The data showed a correlation between nickel hyperaccumulation and primitive karyotype features in the Alyssum genus, and adaptations to normal soils could have diminished the intensity of the nickel hyperaccumulation trait.
شماره‌ی مقاله: 8
واژه‌های کلیدی: Adaptation، Alyssum، Brassicaceae، Karyotype، Metal accumulation، Nickel، Serpentine
نوع مطالعه: پژوهشي |
موضوع مقاله:
تنش فلزات سنگین
دریافت: 1403/4/10 | پذیرش: 1403/6/27 | انتشار: 1404/6/15
دریافت: 1403/4/10 | پذیرش: 1403/6/27 | انتشار: 1404/6/15
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