Pollen tube growth

Particular Observations of Pollen Tube Growth and Its Interaction with Ovules... 

Another problem is the direction of pollen tube growth, which should be considered as tropism, related to attraction by the fertile ovules. Many observations of pollen tubes in the fluorescence microscope supported this suggestion—pollen tubes pass by the sterile ovules and grow in the direction of the fertile ones. The number of ovules penetrated by a pollen tube is correlated with the number of developing seeds, which supports the hypothesis about interaction (attraction) between the ovule and pollen tube (1,2,5). 

Williams EG, Knox RB. Quantitative analysis of pollen tube growth in Lycopersicon peruvianum. JPalynol 1982 18 65-74. 

Sniezko R, Sadaj A. Pattern of pollen tube growth in the Capsel la bursa pastiris and Sisymbrium loeselii (Brassicaceae). VIII Conference of Plant Embryologists, 16-18 September, Gdansk, Poland, 1997. 

Jahnen W, Lush WM, Clark AE. Inhibition of in vitro pollen tube growth by isolated S-glycoproteins of Nicotiana alata. Plant Cell 1989 1 501-510. 

Ylstra, B. et al., Flavonols and fertilization in Petunia hybrida localization and mode of action during pollen tube growth, Plant J., 6, 201, 1994. 

Guyon V, Tang W-H, Monti MM, Raiola A, Lorenzo G, McCormick S, Taylor LP. 2004. Antisense phenotypes reveal a role for SHY, a pollen-specific leucine-rich repeat protein, in pollen tube growth. Plant J 39 643-654. 

Kim Y, Song K, Cheong H. 1996. Effects of flavonoids on pollen tube growth in Arabidopsis thaliana. J Plant Biol 39 273-278. 

As pointed out above, bioassay choice is extremely important since different sensitivities and different responses are observed that are dependent on the bioassay specimen. For example, comparison of four bioassay methods for detection of destruxin B, a host-specific toxin produced by Alternaria brassicae, indicated a lack of rapid electrolyte leakage and insensitivity of host protoplasts. However, leaf and pollen bioassays were sensitive to low toxin levels. Pollen germination was the most rapid, sensitive and quantitative bioassay for the toxin. Significant inhibition of Brassica campestris pollen germination and pollen tube growth occurred only 30 min after incubation with 2.5 pg mL 1, and 7.5 pg mL 1 caused total inhibition.3... 

Kost, B., Lemichez, E., Spielhofer, P., Hong, Y., Tolias, K., Carpenter, C., and Chua, N.H., 1999, Rac homologues and compartmentalized phosphatidylinositol 4,5-bisphosphate act in a common pathway to regulate polar pollen tube growth. J. Cell Biol. 145 317-330. 

Signals that regulate pollen tube growth... 

Homeostatic signaling networks regulating pollen tube growth converge with those regulating cell volume during osmotic stress responses... 

During a study of the affects of a number of phosphoinositides on pollen tube growth, Ins(3,4,5,6)P4 was identified as a negative regulator (L. Zonia, personal... 

Chen, C.Y-H., Cheung, A.Y. and Wu, H-M., 2003, Actin-depolymerizing factor mediates Rac/Rop GTPase-regulated pollen tube growth. Plant Cell 15 237-249. 

Franklin-Tong, VE., 1999, Signaling and the modulation of pollen tube growth. Plant Cell 11 727-738. 

Holdaway-Clarke, T., Feijo, J.A., Hackett, G.R., Kunkel, J.G. and Hepler, P.K., 1997, Pollen tube growth and the intracellular cytosolic calcium gradient oscillate in phase while extracellular calcium influx is delayed. Plant Cell 9 1999-2010. 

Holdaway-Clarke, T.L. and Hepler, P.K., 2003, Control of pollen tube growth role of ion gradients and fluxes. New Phytol. 159 539-563. 

Messerli, M.A., Creton, R., Jaffe, L.F. and Robinson, K.R., 2000, Periodic increases in elongation rate precede increases in cytosolic Ca2+ during pollen tube growth. Dev. Biol. 222 84-98. 

Potocky, M., Elias, M., Profotova, B., Novotna, Z., Valentova, O. and Zarksy, V, 2003, Phosphatidic acid produced by phospholipase D is required for tobacco pollen tube growth. 

Zonia, L., Cordeiro, S. and Feijo, J.A., 2001, Ion dynamics and hydrodynamics in the regulation of pollen tube growth. Sex. Plant Reprod. 14 111-116. 

Friedrich RE and Kristen U (2003) Toxicity assessment of mouthwashes in the pollen tube growth test. Anticancer Research 23(2A) 941-947. 

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