Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
polygalacturonate + H2O | Brassica rapa subsp. oleifera | - |
oligogalacturonates | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Brassica rapa subsp. oleifera | - |
subspecies Brassica campestris chinensis, synonym Brassica rapa chinensis | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
pollen | MF9 is expressed in particular in the tapetum and microspore during the late stages of pollen development | Brassica rapa subsp. oleifera | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
polygalacturonate + H2O | - |
Brassica rapa subsp. oleifera | oligogalacturonates | - |
? |
Synonyms | Comment | Organism |
---|---|---|
male fertility 9 | - |
Brassica rapa subsp. oleifera |
MF9 | - |
Brassica rapa subsp. oleifera |
General Information | Comment | Organism |
---|---|---|
malfunction | antisense RNA transgenic plants that display decreased expression of MF9 show pollen morphological defects that result in reduced pollen germination efficiency. Inhibition of MF9 also results in break-up of the previously formed tectum and baculae from the beginning of the binucleate stage as a result of premature degradation of tapetum | Brassica rapa subsp. oleifera |
physiological function | MF9 may act as a co-ordinator in the late stages of tapetum degeneration, and subsequently in the regulation of wall material secretion and, in turn, exine formation. BcMF9 may also play a role in intine formation, possibly via regulation of the dynamic metabolism of pectin | Brassica rapa subsp. oleifera |