Morphological characterization of Horsfield’s treeshrew Tupaia javanica lingual papillae: Light microscopy and scanning electron microscopy studies

Author(s):  
Gian Gartiwa ◽  
Ulfah Damia ◽  
Emilia Ika Megawati ◽  
Stanislaus I. D. Pradipta ◽  
Geraldus Gunawan ◽  
...  
2019 ◽  
Vol 125 (3) ◽  
pp. 521-532
Author(s):  
Emma Sarath ◽  
Kazune Ezaki ◽  
Takenori Sasaki ◽  
Yu Maekawa ◽  
Yuji Sawada ◽  
...  

Abstract Background and aims Domatia are plant structures within which organisms reside. Callicarpa saccata (Lamiaceae) is the sole myrmecophyte, or ‘ant plant’, that develops foliar (leaf-borne) myrmeco-domatia in this genus. In this work we examined domatium development in C. saccata to understand the developmental processes behind pouch-like domatia. Methods Scanning electron microscopy, sectioning and microcomputed tomography were carried out to compare the leaves of C. saccata with those of the closely related but domatia-less myrmecophyte Callicarpa subaequalis, both under cultivation without ants. Key results Callicarpa saccata domatia are formed as a result of excess cell proliferation at the blade/petiole junctions of leaf primordia. Blade/petiole junctions are important meristematic sites in simple leaf organogenesis. We also found that the mesophyll tissue of domatia does not clearly differentiate into palisade and spongy layers. Conclusions Rather than curling of the leaf margins, a perturbation of the normal functioning of the blade/petiole junction results in the formation of domatium tissue. Excess cell proliferation warps the shape of the blade and disturbs the development of the proximal–distal axis. This process leads to the generation of distinct structures that facilitate interaction between C. saccata and ants.


2011 ◽  
Vol 17 (S2) ◽  
pp. 1912-1913
Author(s):  
Y Ohrai ◽  
T Sunaoshi ◽  
H Ito ◽  
T Ogashiwa ◽  
N Ikawa ◽  
...  

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.


2012 ◽  
Vol 3 (3) ◽  
pp. 289-300 ◽  
Author(s):  
Gladis Labrada-Delgado ◽  
Antonio Aragon-Pina ◽  
Arturo Campos-Ramos ◽  
Telma Castro-Romero ◽  
Omar Amador-Munoz ◽  
...  

2020 ◽  
Vol 49 (2) ◽  
pp. 173-183 ◽  
Author(s):  
Geraldus Gunawan ◽  
Golda Rani Saragih ◽  
Yusuf Umardani ◽  
Srikanth Karnati ◽  
Hevi Wihadmadyatami ◽  
...  

Chromosoma ◽  
2005 ◽  
Vol 115 (1) ◽  
pp. 50-59 ◽  
Author(s):  
Elizabeth Schroeder-Reiter ◽  
Andreas Houben ◽  
Jürke Grau ◽  
Gerhard Wanner

Author(s):  
Reyes Peña-Santiago ◽  
Marcel Ciobanu ◽  
Joaquin Abolafia

Several populations of four known species of the genus Pungentus (P. clavatus, P. engadinensis, P. marietani and P. silvestris), collected in the wild and in cultivated soils from the Iberian Peninsula, are studied. Detailed redescriptions and morphometrics are presented for each species. Illustrations are provided, including line drawings, light microscopy pictures of the four species as well as scanning electron microscopy observations of P. engadinensis. The Iberian populations are compared to type and other known populations, and new data are given that provide a better characterization of these taxa. Pungentus engadinensis is the most widely distributed species in the Iberian Peninsula.


Author(s):  
V. K. Berry

The morphological characterization of any polymer blend plays an important part in the development of a new blend system because the properties of blends are dictated by phase morphology which is dependent upon the chemistry and the processing conditions. Light microscopy, scanning electron microscopy and transmission electron microscopy are the most commonly used microscopical techniques for morphological characterization. Transmission electron microscopy techniques provide the best resolution (≈ 0.3 nm) but are limited in the size of sample area and require elaborate sample preparation procedures. Surface charging and beam damage problems have been some of the drawbacks of conventional scanning electron microscopy with non-conducting materials like polymers.The use of low accelerating voltage scanning electron microscopy (LVSEM) in the characterization of polymers and other non-conducting materials is beginning to be recognized.


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