Results 31 to 40 of about 24,573 (227)
The Plant Cell, 2023 UDP-sugars are important metabolites involved in the biosynthesis of polysaccharides and may be important signaling molecules. UDP-glucose 4-epimerase (UGE) catalyzes the interconversion between UDP-Glc and UDP-Gal, whose biological function in rice ...
Huiqiong Chen +18 more
semanticscholar +1 more source
Plant Physiology, 2022 The pollen wall is important for protecting the male gametophyte and for fertilization. The lipid components of the pollen wall are mainly synthesized and transported from the sporophytic tapetum.
Guoqiang Yuan +26 more
semanticscholar +1 more source
Pollen Sporoplasts: Dissolution of Pollen Walls [PDF]
Plant Physiology, 1985 4-Methylmorpholine N-oxide monohydrate (MMNO.H(2)O), a potent solvent for polysaccharides, is an effective vehicle for release of membrane-enclosed male gametophytes (sporoplasts) from spore walls. This release occurs in minutes when pollen (Lilium longiflorum Thunb.) is suspended in a melt of MMNO.H(2)O at 75 degrees C. Continued heating at 75 degrees
F A, Loewus +4 more
openaire +2 more sources
The Plant Journal, 2021 Plant pollen wall protects the male gametophyte from various biotic and abiotic stresses. The formation of a unique pollen wall structure and elaborate exine pattern is a well-organized process, which needs coordination between reproductive cells and the
Yang Tao +22 more
semanticscholar +1 more source
Plants, 2023 Pectin modification and degradation are vital for plant development, although the underlying mechanisms are still not well understood. Furthermore, reports on the function of pectin in early pollen development are limited.
Kazuya Hasegawa +4 more
doaj +1 more source
Pollen-wall Formation in Arum alpinum [PDF]
Annals of Botany, 2005 Arum alpinum has a quite uncommon pollen wall. A sporopolleninous ektexine is missing. The outermost pollen wall layer is formed by the endexine which is covered by polysaccharidic ornamentation elements. An ontogenetical investigation was accomplished to clarify pollen-wall development, with special reference to callose and pollen-wall development ...
Elisabeth M, Anger, Martina, Weber
openaire +2 more sources
In vitro grown pollen tubes of Nicotiana alata actively synthesise a fucosylated xyloglucan. [PDF]
PLoS ONE, 2013 Nicotiana alata pollen tubes are a widely used model for studies of polarized tip growth and cell wall synthesis in plants. To better understand these processes, RNA-Seq and de novo assembly methods were used to produce a transcriptome of N. alata pollen
Edwin R Lampugnani +9 more
doaj +1 more source
Frontiers in Genetics, 2021 In angiosperms, anther development comprises of various complex and interrelated biological processes, critically needed for pollen viability. The transitory callose layer serves to separate the meiocytes.
Riaz Muhammad Khan +11 more
doaj +1 more source
An atypical strictosidine synthase, OsSTRL2, plays key roles in anther development and pollen wall formation in rice. [PDF]
Sci Rep, 2017 Strictosidine synthase (STR) plays an important role in the biosynthesis of terpenoid indole alkaloids (TIAs) and is expressed in a range of active meristematic tissues of higher plants.
Zou T +14 more
europepmc +2 more sources
Massively Parallelized Pollen Tube Guidance and Mechanical Measurements on a Lab-on-a-Chip Platform. [PDF]
PLoS ONE, 2016 Pollen tubes are used as a model in the study of plant morphogenesis, cellular differentiation, cell wall biochemistry, biomechanics, and intra- and intercellular signaling. For a "systems-understanding" of the bio-chemo-mechanics of tip-polarized growth
Naveen Shamsudhin +8 more
doaj +1 more source