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The aquatic carnivorous plant Aldrovanda vesiculosa (Droseraceae) exhibits altered developmental stages in male gametophyte
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SYSNO ASEP 0543879 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The aquatic carnivorous plant Aldrovanda vesiculosa (Droseraceae) exhibits altered developmental stages in male gametophyte Author(s) Onelli, E. (IT)
Beretta, M. (IT)
Moscatelli, A. (IT)
Caccianiga, M. (IT)
Pozzi, M. (IT)
Stroppa, N. (IT)
Adamec, Lubomír (BU-J) RID, ORCIDSource Title Protoplasma - ISSN 0033-183X
Roč. 258, č. 1 (2021), s. 71-85Number of pages 15 s. Language eng - English Country AT - Austria Keywords pollen development ; pollen structure ; anther structure Subject RIV EF - Botanics OECD category Plant sciences, botany Method of publishing Limited access Institutional support BU-J - RVO:67985939 UT WOS 000568473900001 EID SCOPUS 85090795037 DOI 10.1007/s00709-020-01553-6 Annotation We studied the structure of Aldrovanda vesiculosa pollen collected from flowers in different developmental stages (opened and non-opened anthers) from both European and Australian populations to elucidate pollination traits and poor seed set on the basis of microscopic observation of pollen and anther structure. Microscopic analyses showed that this plant has pollen arranged in tetrads like other species in the Droseraceae family. In hydrated pollen, cytoplasmic protrusions originate from pores located along the equator wall of monads, and can develop into pollen tubes. Interestingly, pollen development from microspores occurs in open anthers, suggesting a delay of the developmental stages. In addition, pollen development displays altered sperm cell formation and precocious pollen germination. Precocious germination may characterize recalcitrant pollen, which naturally do not undergo dehydration before anthesis and remain partially hydrated, particularly in aquatic and wetland plants. These alterations of male gametophyte development could affect fertilization processes, and be the reason for the low reproductive capability of Aldrovanda observed both in the field and in cultures. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0320995
Number of the records: 1