Sporopollenin is a biological polymer found as a major component of the tough outer (exine) walls of plant spores and pollen grains. It is chemically...

Phenylpropanoids and other phenolics are part of the chemical composition of sporopollenin. It is related to cutin and suberin. This ill-defined substance found...

male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement...

entirely of conchiolin. Chitin Corneous Mollusc shell Periostracum Sporopollenin Tectin STRUCTURE OF THE CONCHIOLIN CASES OF THE PRISMS IN MYTILUS EDULIS...

and 2,300 species. Many Aroideae have spiny pollen grains without a sporopollenin outer exine layer and lacking an aperture. It includes: Aglaodorum Schott...

structural support for a plant and is a major constituent of wood. Sporopollenin is a chemically resistant polymer found in the outer cell walls of spores...

the ripe mitospores. The walls of these spores contain sporopollenin in some species. Sporopollenin is formed out of β-carotene and is very resistant to...

Ubisch bodies, con-peito grains) are small acellular structures of sporopollenin that might occur on the inner tangential and radial walls of tapetal...

to use as feedstock for manufacturing processes. Chitobiose Lorica Sporopollenin Tectin Nelson, D.L., Cox, M.M. (2017). Lehninger Principles of Biochemistry...

"Detoxification of Chlordecone Poisoned Rats with Chlorella and Chlorella Derived Sporopollenin". Drug and Chemical Toxicology. 7 (1): 57–71. doi:10.3109/01480548409014173...

subgenus Quercus, the small folds or wrinkles (rugulae) are obscured by sporopollenin, whereas in subgenus Cerris, the rugulae are visible or at most weakly...

"Colchicine inhibits plasmodium formation and disrupts pathways of sporopollenin secretion in the anther tapetum ofTradescantia virginiana L". Protoplasma...

of sterile gametophytic cells. Another similarity is the presence of sporopollenin in the inner wall of the zygote. In at least one species, it receives...

funoran. Other compounds that may accumulate in algal cell walls include sporopollenin and calcium ions. The group of algae known as the diatoms synthesize...

prefixes. Phytic eras are defined by palynomorphs (organisms made out of sporopollenin) which include pollen, spores, and acritarcs in the rock record. The...

cell wall has two layers: a fibrous inner layer and an outer layer of sporopollenin which is often granulated. Guiry, M.D.; Guiry, G.M. "Pseudodidymocystis"...

may be composed of organic material such as chitin, pseudochitin and sporopollenin. Palynomorphs form a geological record of importance in determining...

also thought to be involved in tectin secretion. Chitin Conchiolin Sporopollenin Hyman, Libbie Henrietta (1940). The invertebrates: Protozoa through...

nanometers. They are perpendicular to the plasma membrane. Below is the sporopollenin. The germinal openings (apertures) are more proximal than distal. At...

obscured, whereas in subgenus Quercus, the rugulae are obscured by sporopollenin. The two subgenera are also distinguished to some extent by their different...

dinoflagellate cysts, and fungal remains. Pollen has an outer sheath, called a sporopollenin, which affords it some resistance to the rigours of the fossilisation...

chemical decay. Such tissues include wood (lignin), spores and pollen (sporopollenin), the cuticles of plants (cutan) and animals, the cell walls of algae...

form of spores known as cryptospores. These spores have walls made of sporopollenin, an extremely decay-resistant material that means they are well-preserved...

have this spore wall morphology. (Some) cryptospores are composed of sporopollenin and have the same chemical makeup as co-occurring trilete spores. Recently...

isogamous gametes. Because the cell wall of some Hydrodictyaceae contain sporopollenin, they decay very slowly and thus last long in the fossil record. The...

nodes. These walls are difficult to break down due to the presence of sporopollenin and silica, which the algae uses to defend itself against infection...

C.F.; Graham, L.E.; Thomson, N. (1989), "Lignin-Like Compounds and Sporopollenin Coleochaete, an Algal Model for Land Plant Ancestry", Science, 245 (4916):...

process of zygote formation, as significant factors for the production of sporopollenin, a structural component of the zygospore cell wall. It is consequential...

net of thraustochytrids has been shown the ability to penetrate the sporopollenin of pine pollen, which comprises a polymer that is highly resistant to...

interpretation as an alga. Lignin and cutin have been found in the thalli, and sporopollenin in the spore walls.: 64  The grouping of the spores found in the thallus...