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About the Journal
Plant Diversity of Central Asia is a peer-reviewed, Open Access journal published by the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan. It publishes original research, reviews and short communications on the flora, vegetation, systematics, ecology and conservation of Central Asia, in English.
Current Issue
Vol. 5 No. 1 (2026)
This issue of Plant Diversity of Central Asia (Vol. 5, Issue 1) highlights advances in understanding plant responses to heavy-metal stress through an integrated assessment of chromium toxicity in wheat. Featuring a study by Fayaz Asad et al., the issue evaluates two wheat cultivars, Akbar-19 and Fakhar-e-Bhakkar, exposed to increasing chromium concentrations with and without serine co-application. Using three-way analysis of variance, linear mixed-effects modelling, dose–response analysis, principal component analysis, and multivariate analysis of variance, the study reveals a clear dose-dependent decline in growth and biochemical performance. Serine provided partial mitigation, but its effectiveness varied among traits, chromium levels, and cultivars, with Akbar-19 showing greater shifts in estimated EC50 values for several responses. The first two principal components explained 74.7% of biochemical variation, while multivariate analysis confirmed significant effects of cultivar and chromium dose. Together, these findings emphasize the genotype- and dose-dependent nature of serine-mediated alleviation of chromium phytotoxicity in wheat.
Published:
2026-09-02
Articles
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Research Article Open Access
Serine-mediated alleviation of chromium-induced phytotoxicity of two wheat cultivars: a multivariate and dose–response statistical assessment
License: cc BY 4.0Keywords: chromium stress; Triticum aestivum; serine; three-way ANOVA; linear mixed-effects model; dose-response modelling; principal component analysis; MANOVAAbstract Chromium (Cr) contamination can impair wheat growth and metabolism, while serine may modulate plant stress responses. This study analyzed a pot experiment with two wheat cultivars, Akbar-19 and Fakhar-e-Bhakkar, exposed to 0, 30, 60 and 90 ppm Cr, with or without serine co-application.… -
Research Article Open Access
Comparative morphological characteristics of the chromosomes of two Rheum species
License: cc BY 4.0Keywords: Rheum maximowiczii; Rheum turkestanicum; karyotype; karyomorphometry; cytogenetics; polyploidy; chromosomesAbstract Rheum maximowiczii Losinsk. and Rheum turkestanicum Janisch. are closely related species occurring in the flora of Uzbekistan, yet their cytogenetic characteristics and karyological relationships remain insufficiently documented. In this study, chromosome number, karyotype structure,…
