Congratulations, Kelsey! On passing your written and oral comprehensive examination and being declared as a PhD candidate!…Continue Reading Kelsey Przye successfully completed comprehensive examination
Our aging ears (Image downloaded from SouthWestern Medical Center website). Over the course of our life and as we get older, the structures undergo considerable change. One aspect of such a change is that the eardrum (figure above) thickens and affects our hearing. So older people cannot hear as well as the younger ones. Let us…Continue Reading Did you hear that? Our aging ears
This month’s science link is to a special issue of Molecular Plant on pollen biology: http://mplant.oxfordjournals.org/content/6/4.toc Check out the worldwide pollen community-generated research articles, letters, and reviews on various aspects of pollen biology in this issue of Molecular Plant focussed on pollen biology….Continue Reading Special Issue of Molecular Plant on Pollen Biology
A review article, in which our lab participated, on pollen tube navigation is published A Fruitful Journey: Pollen Tube Navigation from Germination to Fertilization. Mark A. Johnson, Jeffrey F. Harper, and Ravishankar Palanivelu Annu Rev Plant Biol. 2019 Apr 29;70:809-837 https://doi.org/10.1146/annurev-arplant-050718-100133 Abstract of the review article: In flowering plants, pollen tubes undergo tip growth to…Continue Reading Lab News (April 2019)
A new article on structure-function analysis of LORELEI is published from our lab Liu, X., Castro, C., Wang, Y., Noble, J., Ponvert, N., Bundy, M., Hoel, C., Shpak, E., and Palanivelu, R. (2016). The Role of LORELEI in Pollen Tube Reception at the Interface of the Synergid Cell and Pollen Tube Requires the Modified Eight-Cysteine Motif and…Continue Reading Lab News (June 2016)
Jen Noble, a graduate student in the Palanivelu lab, the University of Arizona, won the Willemse Award (certificate + $300) at the recently concluded Plant Reproduction 2016 conference. The award is given by International Association of Sexual Plant Reproduction (IASPRR) for the best poster presentation in the biannual conference. The award was presented by Dr. Tetsuya Higashiyama, President of IASPRR, on 3/22/16…Continue Reading Lab News (April 2016)
Pollen tube discharge completes the process of synergid degeneration that 21 is initiated by pollen tube – synergid interaction in Arabidopsis Alexander R. Leydon, Tatsuya Tsukamoto, Damayanthi Dunatunga, Yuan Qin, Mark A. Johnson* and Ravishankar Palanivelu* School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA (T.T., 31 D.D., Y.Q., R.P.) Center for Genomics…Continue Reading Lab News (August 2015)
Our lab has been actively involved in promoting STEM education in Southern Arizona over the past several years. We presented activities related to pollen biology in multiple outreach events, participated in judging science fairs at various levels in southern Arizona, conducted visits in our lab for Girls Scout troops, schools, and community colleges, and hosted…Continue Reading Lab News (April 2014)
Our lab has been actively involved in promoting STEM education in Southern Arizona over the past several years. We presented activities related to pollen biology in multiple outreach events, participated in judging science fairs at various levels in southern Arizona, conducted visits in our lab for Girls Scout troops, schools, and community colleges, and hosted…Continue Reading Lab News (April 2015)
Dr. Mark Johnson’s lab at Brown University published a new research article on an Arabidopsis pollen tube mutant that fails to arrest its growth (pollen tube reception) in the synergid cell of the embryo sac (female gametophyte) and release the sperm cells to complete double fertilization. This is the first report on the male-specific defects…Continue Reading Lab News (August 2013)