The chemical reactions and pathways resulting in the formation of the pectin component of mucilage.

The process whose specific outcome is the progression of the pollen grain over time, from its formation to the mature structure. The process begins with the meiosis of the microsporocyte to form four haploid microspores. The nucleus of each microspore then divides by mitosis to form a two-celled organism, the pollen grain, that contains a tube cell as well as a smaller generative cell. The pollen grain is surrounded by an elaborate cell wall. In some species, the generative cell immediately divides again to give a pair of sperm cells. In most flowering plants, however this division takes place later, in the tube that develops when a pollen grain germinates.

Growth of pollen via tip extension of the intine wall.

The chemical reactions and pathways resulting in the formation of pectin, a polymer containing a backbone of alpha-1,4-linked D-galacturonic acid residues, as part of the organization and biogenesis of the cell wall.

The chemical reactions and pathways resulting in the formation of mucilage, a gelatinous substance secreted by plants.

The chemical reactions and pathways resulting in the formation of rhamnogalacturonan I component of pectin, a rhamnose-rich pectic polysaccharide.

The process in which seed mucilage expands through hydration and breaks the outer cell wall that encapsulates the whole seed upon imbibition. Mucilage, mainly composed of pectins, is formed during seed development and deposited into the apoplast underneath the outer wall of the seed coat.

The chemical reactions and pathways resulting in the formation of the pectidic homogalacturonan, characterized by a backbone of (1->4)-linked alpha-D-GalpA residues that can be methyl-esterified at C-6 and carry acetyl groups on O-2 and O-3.

The chemical reactions and pathways resulting in the formation of the pectidic homogalacturonan, characterized by a backbone of (1->4)-linked alpha-D-GalpA residues that can be methyl-esterified at C-6 and carry acetyl groups on O-2 and O-3.

The chemical reactions and pathways involving xylan, a polymer containing a beta-(1->4)-linked D-xylose backbone decorated with glucuronic acid side units.

The chemical reactions and pathways resulting in the formation of glucuronoxylan, a polymer containing a beta-1,4-linked D-xylose backbone substituted with glucuronic acid residues.

The chemical reactions and pathways resulting in the formation of pectin, a polymer containing a backbone of alpha-1,4-linked D-galacturonic acid residues.

The chemical reactions and pathways resulting in the formation of xylan, a polymer containing a beta-1,4-linked D-xylose backbone.

A process that results in the assembly, arrangement of constituent parts, or disassembly of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis.

A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.

A vacuole to which materials ingested by endocytosis are delivered.

The network of interconnected tubular and cisternal structures located within the Golgi apparatus on the side distal to the endoplasmic reticulum, from which secretory vesicles emerge. The trans-Golgi network is important in the later stages of protein secretion where it is thought to play a key role in the sorting and targeting of secreted proteins to the correct destination.

A tubular cell projection that is part of a pollen tube cell and extends from a pollen grain.

A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

The lipid bilayer surrounding the vacuole and separating its contents from the cytoplasm of the cell.