Phytoliths from some grasses (Poaceae) in arid lands of Xinjiang, China

Olonova, Marina V.; Gudkova, Polina D.; Shiposha, Valeria D.; Kriuchkova, Elizaveta A.; Mezina, N. S.; Blinnikov, Mikhail S.

doi:10.3897/abs.7.e76105

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…На примере трех родов злаков: Festuca L., Poa L. и Calamagrostis Adans., проанализированы различия на внутриродовом уровне. Названия секций и подродов даны на основе следующих публикаций: Catalan et al, 2007и Cheng et al, 2016Gillespie et al, 2007Gillespie et al, , 2018Sorеng et al, 2010;Olonova, 2016 -для рода Poa;Tsvelev, Probatova, 2012 -для (Blinnikov, 2005;Olonova et al, 2021), а для некоторых видов южноамериканских ковылей указаны трехлопастные формы с ассиметрично расположенными лопастями (Gallego, Distel, 2004). Также отсутствуют у представителей этой трибы и волнистые пластинки.…”

Section: материалы и методыunclassified

“…У вида Bromopsis inermis, который относится к трибе Bromeae, формируются волнистые пластинки, а полилопастные трапеции отсутствуют. Похожие данные получены и у вида Bromus tectorum (Blinnikov, 2005), а у вида Bromus squarrosus отсутствуют морфотипы, которые мы можем отождествить с двумя рассматриваемыми формами (Olonova et al, 2021). Трибы Triticeae и Bromeae филогенетически близки (Soreng et al, 2017), и у них наблюдается близкий состав морфотипов фитолитов.…”

Section: материалы и методыunclassified

“…Эта триба по изученным характеристикам фитолитов наиболее отлична от всех в подсемействе Pooideae. Полилопастные частицы также указаны были ранее для видов Melica picta (Hoskova et al, 2021) и Melica transsilvanica (Olonova et al, 2021).…”

Section: материалы и методыunclassified

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Separation of wavy and polylobate forms of phytoliths of the “crenate” morphotype in Pooideae Benth. species of the south of Western Siberia on the basis of phylogenetic data

Solomonova¹,

Speranskaya²,

Blinnikov³

et al. 2022

Turczaninowia

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The article deals with the problem of nomenclature and classification of phytoliths. The division of the “crenate” morphotype (ICPN 2.0) into two forms – polylobate and wavy – is substantiated using Pooideae grasses from the south of Western Siberia. An analysis of the literature data confirms the heterogeneity of this morphotype and various interpretations of its variations. The polylobate group includes phytoliths high in lateral projection with distinct lobes, and the wavy group includes flattened forms with a wavy edge. The article details the formation of these two morphotypes in 52 grass species belonging to 25 genera. The main content of the study is an analysis of the occurrence of forms in various tribes and subtribes according to modern information on the phylogeny of cereals. The differences in the formation of these morphotypes at the sectional and subgeneric levels are considered using as examples three genera. The detailed analysis shows that wavy plates are most typical for the subtribe Aveninae(Poeae), polylobed particles are typical for the subtribe Agrostidinae (Poeae) and the tribe Meliceae. For some taxa, for example, the tribe Stipeae, ambiguous data have been obtained that are inconsistent with information from other territories, which indicates the need for further research on this problem. The analysis of occurrence of forms at the intrageneric level shows that in the genera Poa and Festuca there are differences between individual subgenera and sections, while for the genus Calamagrostis there are no such differences. The results obtained point to the prospect of using phylogenetic information in the classification of phytoliths and the need for a more complete study of large genera of grasses in terms of phytolith composition (Festuca, Calamagrostis, Poa, Stipa, etc.).

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Section: материалы и методыunclassified

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Separation of wavy and polylobate forms of phytoliths of the “crenate” morphotype in Pooideae Benth. species of the south of Western Siberia on the basis of phylogenetic data

Solomonova¹,

Speranskaya²,

Blinnikov³

et al. 2022

Turczaninowia

View full text Add to dashboard Cite

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Potential of Forage Grasses in Phytoremediation of Lead through Production of Phytoliths in Contaminated Soils

Amaral

Silva

Santos

et al. 2022

Land

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Phytoremediation has become a promising technique for cleaning Pb-contaminated soils. Grasses have a phytoextractor potential for extracting metal from soil by transporting it and accumulating it in high concentrations in their shoots, and they have the ability to immobilize and inactivate it via phytoliths. The objective of this work was to evaluate the phytoremediation potential of forage grasses through the production of phytoliths and the occlusion of Pb in the phytoliths cultivated in Pb-contaminated soils. Three greenhouse experiments were conducted in a completely randomized design, separated by soil type (Typical Hapludox, Xanthic Hapludox and Rhodic Hapludox), in a 3 × 4 factorial scheme consisting of three forage grasses (Megathyrsus maximus, Urochloa brizantha and Urochloa decumbens) and four Pb rates (0, 45, 90 and 270 mg kg−1) with four repetitions. The forage grasses were influenced by increases in the Pb concentrations in the soils. The higher Pb availability in Typic Quartzipsamment promoted Pb toxicity, as indicated by the reduced dry weights of the shoots, increased phytolith production in the shoots, increased Pb in the shoots and Pb occlusion in the phytoliths of the forage grasses. The production and Pb capture in the phytoliths in the grasses in the Pb-contaminated soils were related to the genetic and physiological differences in the forage grasses and the Pb availability in the soils. Urochloa brizantha was the most tolerant forage to the excess Pb, with a higher production of phytoliths and higher Pb occlusion in the phytoliths, making it a forage grass that can be used in the future for the phytoremediation of Pb-contaminated soils.

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Phytoliths from some grasses (Poaceae) in arid lands of Xinjiang, China

Cited by 2 publications

References 17 publications

Separation of wavy and polylobate forms of phytoliths of the “crenate” morphotype in Pooideae Benth. species of the south of Western Siberia on the basis of phylogenetic data

Separation of wavy and polylobate forms of phytoliths of the “crenate” morphotype in Pooideae Benth. species of the south of Western Siberia on the basis of phylogenetic data

Potential of Forage Grasses in Phytoremediation of Lead through Production of Phytoliths in Contaminated Soils

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