Table of Contents
Plants, Volume 6, Issue 1 (March 2017)
- Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.
- You may sign up for e-mail alerts to receive table of contents of newly released issues.
- PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.
Cover Story Pollen tube tip growth requires timely and location specific coordination of exocytosis and enzyme [...] Read more. Pollen tube tip growth requires timely and location specific coordination of exocytosis and enzyme activity - inside the cell membrane, and outside in the cell wall. Using transient growth inhibition, we show that a gradient in protons, manifest as an alkaline band just behind the tube tip, disappears as growth stops, and is re-established well before growth resumes. A tip-focused calcium ions gradient also reforms, but co-incident with resumed growth. Thus, a proton gradient precedes and may direct growth, while the calcium gradient follows growth, marking the region of greatest expansion. View the paper