ArticleThe Journal of membrane biology2003
Characterization of whole-cell K+ currents across the plasma membrane of pollen grain and tube protoplasts of Lilium longiflorum.
Article in The Journal of membrane biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Signaling with Ions: The Keystone for Apical Cell Growth and Morphogenesis in Pollen Tubes.Plant physiology · 2017Review
- Lost in traffic? The K(+) channel of lily pollen, LilKT1, is detected at the endomembranes inside yeast cells, tobacco leaves, and lily pollen.Frontiers in plant science · 2015Article
- Ca2+-dependent protein kinase11 and 24 modulate the activity of the inward rectifying K+ channels in Arabidopsis pollen tubes.The Plant cell · 2013Article
- Potassium flux in the pollen tubes was essential in plant sexual reproduction.Plant signaling & behavior · 2011Article
- Self-incompatibility in Papaver rhoeas activates nonspecific cation conductance permeable to Ca2+ and K+.Plant physiology · 2011Article
- Osmoregulation in Lilium pollen grains occurs via modulation of the plasma membrane H+ ATPase activity by 14-3-3 proteins.Plant physiology · 2010Article
- Ectopic expression of Arabidopsis thaliana plasma membrane intrinsic protein 2 aquaporins in lily pollen increases the plasma membrane water permeability of grain but not of tube protoplasts.The New phytologist · 2008Article
- A cyclic nucleotide-gated channel is essential for polarized tip growth of pollen.Proceedings of the National Academy of Sciences of the United States of America · 2007Article
- Measuring the osmotic water permeability of the plant protoplast plasma membrane: implication of the nonosmotic volume.The Journal of membrane biology · 2007Article
- Ca2+-permeable channels in the plasma membrane of Arabidopsis pollen are regulated by actin microfilaments.Plant physiology · 2004Article
- Identification and characterization of stretch-activated ion channels in pollen protoplasts.Plant physiology · 2004Article
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Authors and funding
2 authors.
Funding
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Abstract
Outward and inward currents, mainly carried by K(+), were detected in protoplasts of pollen grains (PG) and pollen tubes (PT) of Lilium longiflorum Thunb. by using the whole-cell configuration of the patch-clamp technique. The outward K(+) current (I(K+ out)) was similar in both protoplast types, while the inward K(+) current (I(K+ in)) was higher in pollen tube protoplasts. In PT but not in PG protoplasts, inward K(+) currents were already detectable at negative membrane voltages usually monitored in lily pollen. I(K+ in) consisted of a slow and a fast current component, as revealed by fitting a sum of two exponential functions to the time-dependent current. The contribution of the fast component to the total inward current was higher in PT than in PG protoplasts, which was even more evident at acidic pH of the external medium. Therefore, based on the measured characteristics, the I(K+ in) of PT protoplasts may contribute to the endogenous K(+) currents surrounding a growing pollen tube.
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