pollenSEMviabilityThe present article describes the pollen grain stereostructure (SEM), viability with fluorescein diacetate, and correlation between the temperature of 5°C and 25°C and the germination and pollen tube length of Antirrhinum tortuosum Bosc, collected in Cefal (Palermo). We have ...
Generative Cell:The generative cell of pollen grain is small and floats in the cytoplasm of the vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60% of angiosperms, pollen grains are shed at this 2-celled staged. In remaining species, the pollen grain genera...
On the basis of the parent-hybrid trios, better parent heterosis (BPH) was evaluated. Most hybrids showed BPH in grain yield-related traits. However, with respect to grain quality, most hybrids did not exhibit heterosis (Extended Data Fig. 2b). To facilitate access to the resource, we ...
Figure 7. Pollen develops from the microspore mother cells. The mature pollen grain is composed of two cells: the pollen tube cell and the generative cell, which is inside the tube cell. The pollen grain has two coverings: an inner layer (intine) and an outer layer (exine). The inset ...
In tree species with restricted seed and pollen dispersal, low gene flow is expected to result in significant genetic differentiation within continuous populations (Cavers et al., 2005; Hardy et al., 2006), whereas high gene flow within populations of wind-pollinated species is expected to ...
and maintain a balance of the cellular Ub pool. In addition, some DUBs prefer to cleave poly-Ub chains not linked through the conventional K48 residue, which often alter the substrate activity instead of its stability. In plants, all seven known DUB subfamilies have been identified, namely Ub...
Plant cells are surrounded by cell walls consisting of complex networks of polysaccharides and glycoproteins. Cell walls play a vital role in a plant’s development and its interactions with the environment. The biosynthesis of cell walls is fueled by ca
1964. Fine structure of Petunia pollen grain and pollen tube. Acta Bot Neerl 13: 174-181.Sassen MMA (1964) Fine structure of Petunia pollen grain and pollen tube. Acta Bot Neerl 13: 175-181Sassen, M. M. A. : Fine structure of Petunia pollen grain and pollen tube.—Acta bot. neel...
Sassen MMA (1964) Fine structure of Petunia pollen grain and pollen tube. Acta Bot Neerl 13: 175-181Sassen, M. A. , 1964: Fine structure of Petunia pollen grain and pollen tube. Acta Bot. Neerl. 13 , 175–181.SASSEN, M. A., 1964: Fine structure of Petunia pollen grain and ...
pollen structureantherThe structure of the anther and pollen grain was investigated in an Antarctic plant Deschampsia antarctica Desv. under a confocal microscope (CLSM). The Antarctic hair grass is one of the two native vascular plants growing in Antarctica. The structure of D. antarctica stamens...