title: Cellular Growth in Aerial Roots Differs From That in Typical Substrate Roots
metadata.name: dc.contributor.author
metadata.value: Eskov, Alen K.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Viktorova, Violetta A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Abakumov, Evgeny
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Zotz, Gerhard
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2022-06-15T15:09:11Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2022-06-15T15:09:11Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2022-05-11
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Eskov Alen K., Viktorova Violetta A., Abakumov Evgeny, Zotz Gerhard. Cellular Growth in Aerial Roots Differs From That in Typical Substrate Roots.Frontiers in Plant Science. 13. 2022.
metadata.lang: en_GB
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/36701
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Background and Aims: In the roots of most vascular plants, the growth zone is small, the meristem and the elongation zone are sharply separated, and only meristematic cells divide. This statement is based almost entirely on studies with soil-rooted plants. Whether aerial roots of structurally dependent (=epiphytic/hemiepiphytic) species differ is virtually unexplored.
  
  Methods: Growth of aerial roots in 20 structurally dependent plant species from eight families was studied ex situ. In 12 species, we studied the anatomical structure and distribution of cortex cell lengths and rhizoderm in the growth zone.
  
  Key Results: All the studied aerial roots had an open apical meristem, and mitoses were not restricted to the meristem. In contrast to belowground roots, relative growth rate did not strongly increase upon transition to the elongation zone, while elongating growth was often prolonged. Still, the relative growth rate was lower than in belowground roots in soil, and in different species, it did not change considerably compared to each other.
  
  Conclusions: A distinct elongation zone with rapid cell growth was missing in the studied aerial roots. Rather, there was a growth zone in which division, growth, and differentiation co-occurred. We observed a generally low relative growth rate in aerial roots and a surprisingly similar initial growth pattern in spite of the diversity in taxonomy and ecology, which resembled initial cellular growth in leaves, stems, and fleshy dicotyledonous fruit.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work was supported by the Federal budget of Russian Federation, Grant to support for the creation and development of a World-Class Scientific Center Agrotechnologies for the Future, Project No. 075-15-2022-322 date 22.04.2022 and accordance with Institutional Research Project No. 122042700002-6 at the Unique Scientific Installation Fund Greenhouse. Also, the work was supported by MSU Contract #121032500089-1. In this work we used a microscope purchased under the program of modernization of scientific equipment of St. Petersburg State University No. 1.40.541.2017.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Frontiers in Plant Science
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: plants
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Cellular Growth in Aerial Roots Differs From That in Typical Substrate Roots
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: fpls-13-894647 (2).pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/36701/1/fpls-13-894647%20%282%29.pdf
resources.format: Adobe PDF
resources.description: Article
resources.size: 5,37 MB