Results 71 to 80 of about 1,784,085 (182)

Post-sieve element transport of photoassimilates in sink regions

, 1996
Photoassimilate transport from the sieve elements to the recipient sink cells, principally in the form of sucrose, provides a link between sink metabolism and compartmentation with phloem import.
J.W. Patrick, C.E. Offler
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Molecular and phylogenetic characterization of the sieve element occlusion gene family in Fabaceae and non-Fabaceae plants

BMC Plant Biology, 2010
Background The phloem of dicotyledonous plants contains specialized P-proteins (phloem proteins) that accumulate during sieve element differentiation and remain parietally associated with the cisternae of the endoplasmic reticulum in mature sieve ...
Müller Boje, Reineke Anna R, Nordzieke Steffen, Jekat Stephan B, Ernst Antonia M, Rüping Boris, Bornberg-Bauer Erich, Prüfer Dirk, Noll Gundula A   +8 more
doaj   +1 more source

PROTOPLAST STRUCTURE IN SIEVE TUBE ELEMENTS [PDF]

New Phytologist, 1964
SummaryThe microscopic structure of sieve tube elements was studied in fresh hand sections from Cucurbita pepo, Glycine max and Solanum tuberosum. The sections were stained in aqueous solutions of either iodine (Lugol's) or eosin. Photomicrographs from these preparations show linear cytoplasmic structures attached to sieve plates, and linear files of ...
openaire   +1 more source

Barley yellow dwarf virus Infection Leads to Higher Chemical Defense Signals and Lower Electrophysiological Reactions in Susceptible Compared to Tolerant Barley Genotypes

Frontiers in Plant Science, 2018
Barley yellow dwarf virus (BYDV) is a phloem limited virus that is persistently transmitted by aphids. Due to huge yield losses in agriculture, the virus is of high economic relevance.
Maria K. Paulmann, Maria K. Paulmann, Grit Kunert, Matthias R. Zimmermann, Nina Theis, Nina Theis, Anatoli Ludwig, Doreen Meichsner, Ralf Oelmüller, Jonathan Gershenzon, Antje Habekuss, Frank Ordon, Alexandra C. U. Furch, Torsten Will   +13 more
doaj   +1 more source

Possible Significance of Filaments in Sieve Elements [PDF]

Nature, 1972
OF the several theories of sieve tube translocation at present being investigated, the surface action theory of van den Honert1 appears to have the least favour. Opponents to this theory have pointed out that the surface area requirements of such a system are beyond the capacity of the sieve tubes2, but calculations based on evidence from electron ...
openaire   +1 more source

Systematics and evolution of Velloziaceae, with special reference to sieve-element plastids and rbcL sequence data

, 2000
Sieve-element plastids and rbcL nucleotide sequences were analysed for Velloziaceae and all families sometimes discussed as close allies (Acanthochlamydaceae, Amaryllidaceae, Bromeliaceae, Cyclanthaceae, Haemodoraceae, Hypoxidaceae, Pandanaceae ...
Wink, M, Behnke, HD, Univ Heidelberg, Inst Pharmazeut Biol, Neuenheimer Feld 230, D-69120 Heidelberg, Germany, Behnke, HD, Kramer, K, Kao, PC, Schneider, C, Treutlein, J   +6 more
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Sound-absorption simulation and analysis of double-layer porous asphalt based on mesoscopic pore structure

Case Studies in Construction Materials
While most studies evaluate sound-absorption performance of double-layer porous asphalt (DLPA) pavement using macroscopic approaches, this research conducts mesoscopic analysis through acoustic simulations.
Gongyun Liao, Dawei Wang, Weijie Zhang, Xueyuan Lu, Hao Wang, Yongli Zhao, Haitong Zeng   +6 more
doaj   +1 more source

Comparative Anatomical Analysis of Bark Structure in 10 Quercus Species

Plants
Detailed anatomical features of bark are used and interpreted in plant taxonomy, phylogenetics, and other areas of plant science. However, the delicate nature of bark cells, combined with the difficulty of obtaining high-quality sections and reliable ...
Changzhao Li, Xiaorui Yang, Songyang Chen, Yuxi Huang, Yushan Yang, Jian Qiu   +5 more
doaj   +1 more source

Sieve element occlusion provides resistance against Aphis gossypii in TGR-1551 melons. [PDF]

Insect Sci, 2020
Peng HC, Walker GP.
europepmc   +1 more source

Properties of the Sieve Bootstrap for Fractionally Integrated and Non-Invertible Processes [PDF]

In this paper we will investigate the consequences of applying the sieve bootstrap under regularity conditions that are sufficiently general to encompass both fractionally integrated and non-invertible processes.
D. S. Poskitt
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