Results 71 to 80 of about 6,189 (215)
Ergebnisse der Kartierung der Armleuchteralgen im Süden von Sachsen-Anhalt [PDF]
, 2009 Nach einer kurzen Einführung zur Ökologie und zur Erforschung der Armleuchteralgen werden das Untersuchungsgebiet im Südteil von Sachsen-Anhalt umgrenzt und die Methoden der Erfassung der Armleuchteralgen erläutert.
Korsch, Heiko
core
Photochemistry and Photobiology, Volume 101, Issue 3, Page 728-745, May/June 2025.White light signals lasting less than 30 s induced rapid drop (1 s) of some Mimosa pudica leaves, resulting from osmocontraction of the pulvinar motor cells (A). An early signal detected after about 5 s is a change in motor cell membrane potential, depending on the wavelength applied (B).
Gabriel Roblin +3 more
wiley +1 more source
, 2023 Nitella micklei Casanova in M. T.Casanova & J. L.Porter, Muelleria 31: 55 (2013) Type: WESTERN AUSTRALIA. Mulga Downs Outcamp Claypan, 17 Aug. 2006, M. T. Casanova PBS17: r114 (holo: MEL!). Dioecious. Plants sometimes calcified, homeoclemous, up to 90 mm tall, internodes up to 35 mm long (Fig. 10 a).
Casanova, Michelle T., Karol, Kenneth G.
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Potassium transference in Nitella. [PDF]
The Journal of general physiology, 1978 Transmembrane movements of K+ and Cl- were studied under a variety of experimental conditions. Potassium was found to carry more than 50% of an externally applied inward positive current. The increase in K+ influx was much greater than that predicted by the purely passive model.
T E, Ryan, C E, Barr, J P, Zorn
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Notes on distribution and bio-ecology of Characeae [PDF]
, 1944 The species of the family Characeae have for many years been generally neglected by botanists leaving identification a difficult matter due to the absence of usable and practical keys and ...
Kiener, Walter
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“Shape of Cell”—An Auxin and Cell Wall Duet
Physiologia Plantarum, Volume 177, Issue 3, May/June 2025.ABSTRACT Understanding the mechanisms underlying cell shape acquisition is of fundamental importance in plant science, as this process ultimately defines the structure and function of plant organs. Plants produce cells of diverse shapes and sizes, including pavement cells and stomata of leaves, elongated epidermal cells of the hypocotyl, and cells with
Vinod Kumar +3 more
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A study of the new characteristic charophyte and the classification status
四川大学学报. 自然科学版, 2017 This study was focused on a special charophyte collected from Ya'an, Sichuan. Morphological observation showed that it had two-layer coronal, divided branchlets and no cortex. These were the features of Nitelleae. But there was another feature which hadn’
CHEN Kong-Xiang +5 more
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Does Long-Term Macrophyte Management in Lakes Affect Biotic Richness and Diversity? [PDF]
, 2005 We hypothesize that the richness and diversity of the biota in Lake Moraine (42°50’47”N, 75°31’39”W) in New York have been negatively impacted by 60 years of macrophyte and algae management to control Eurasian watermilfoil ( Myriophyllum spicatum L.
Harman, Willard N. +2 more
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THE DIRECT CURRENT RESISTANCE OF NITELLA [PDF]
Journal of General Physiology, 1930 The electrical resistance of Nitella cells to direct current is determined in a Wheatstone bridge, using a vacuum-tube detector, and string galvanometer. Very small currents are passed through the cells, to avoid stimulation. The galvanometer record shows typical transient effects in the living cells at opening and closing of the circuit, due to the ...
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New Phytologist, Volume 245, Issue 1, Page 69-87, January 2025.Summary The ability to accumulate nutrients is a hallmark for living creatures and plants evolved highly effective nutrient transport systems, especially for the uptake of potassium (K+). However, plants also developed mechanisms that enable the rapid extrusion of K+ in combination with anions.
Dorsaf Hmidi +4 more
wiley +1 more source