Results 41 to 50 of about 78,484 (304)

Structural and Functional Characterization of EXPO‐Derived Extracellular Vesicles in Plants

Advanced Science, EarlyView.
In this study, 3D electron tomography (ET), cryo‐ET, and immunogold transmission electron microscopy (TEM) are employed to characterize plant extracellular vesicles (EVs) under physiological conditions. EVs are classified into three distinct categories according to their size, content, and molecular‐marker profiles. Furthermore, Exo70E2‐positive medium
Jiayang Gao, Yanbin Li, Shengqi Zhang, Yilin He, Zhiqi Liu, Juan Wang, Jingmin Hua, Jinyu Chen, Junru Zhong, Huan Zhong, Yiji Xia, Yong Cui, Liwen Jiang   +12 more
wiley   +1 more source

Collapsing pollen grains [PDF]

, 2019
Pollen grains come in all sorts of shapes - they can be spherical, ellipsoidal, lobate, prismatic, polyhedral, and then, there are some which escape easy qualification in terms of geometry. The sizes also differ very much, from less than 10 micrometers (e.g.
Božič, Anže, Šiber, Antonio
openaire   +2 more sources

Ecological features of Ambrosia artemisiifolia L. flowers and characteristics of Ambrosia L. pollen seasons in the condition of Lublin (Poland) in the years 2001-2008

Acta Agrobotanica, 2012
In the study, the biology of fl owering of Ambrosia artemisiifolia L. was investigated and the pattern of the Ambrosia pollen seasons in Lublin in the years 2001-2008 was characterised. The structure of male and female A.
Elżbieta Weryszko-Chmielewska, Krystyna Piotrowska   +1 more
doaj   +1 more source

Segmenting 20 Types of Pollen Grains for the Cretan Pollen Dataset v1 (CPD-1)

Applied Sciences, 2021
Pollen analysis and the classification of several pollen species is an important task in melissopalynology. The development of machine learning or deep learning based classification models depends on available datasets of pollen grains from various plant
Nikos Tsiknakis, Elisavet Savvidaki, Sotiris Kafetzopoulos, Georgios Manikis, Nikolas Vidakis, Kostas Marias, Eleftherios Alissandrakis   +6 more
doaj   +1 more source

Fungitoxicity in pollen grains [PDF]

Grana, 1983
Abstract While screening 45 samples of pollen suspension for their antifungal activity against Helminthosporium oryzae and Alternaria alternata, only that of Lycopersicon lycopersicum exhibited absolute toxicity against both the pathogens. The maximum inhibitory dilutions were found to be 1: 200 and 1: 500 (w/v) against A. alternata and H.
D. K. Pandey, R. N. Tripathi, R. D. Tripathi, S. N. Dixit   +3 more
openaire   +1 more source

Chromatin Topology Reconfiguration Orchestrates Thermotolerant Male Fertility via GhAL5 in Cotton

Advanced Science, EarlyView.
This study investigates cotton’s high‐temperature (HT) response using multi‑omics. Dynamic 3D genome changes drive expression bias affecting male fertility. The tolerant line shows controlled chromatin dynamics, while the sensitive line exhibits overactivation.
Yanlong Li, Jing Yang, Weiran Wang, Chunyang Zuo, Liuling Pei, Yizan Ma, Rui Zhang, Yaru Fan, Huanhuan Ma, Yawei Li, Ruizhen Liu, Shuangxia Jin, Longfu Zhu, Jie Kong, Xianlong Zhang, Ling Min   +15 more
wiley   +1 more source

Pollen dimorphism and androgenesis in Hordeum vulgare

Acta Societatis Botanicorum Poloniae, 2014
Dimorphism of binucleate pollen grains of Hordeum vulgare has been confirmed. It is considered, however, in contrast to the accepted opinions, that some of the large pollen grains with dense cytoplasm lying close to the tapetum are the outset forms for ...
Krystyna Idzikowska, Aleksandra Ponitka, Fortnat Młodzianowski   +2 more
doaj   +1 more source

Pollen morphology of Nothofagus (Nothofagaceae, Fagales) and its phylogenetic significance [PDF]

, 2016
Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica,
Barreda, Viviana Dora, Fernández, Damián Andrés, Palazzesi, Luis, Santamarina, Patricio Emmanuel, Tellería, María Cristina   +4 more
core   +2 more sources

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

Advanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır, Yuan Fang, Consuelo Contreras, Andrew K. Schulz, Florian Hartmann   +4 more
wiley   +1 more source

Pollen of Pterocarya (Juglandaceae) representatives from natural habitats and St. Petersburg environments

Труды по прикладной ботанике, генетике и селекции, 2022
Background. Comparative palynomorphological studies of naturally occurring and introduced Pterocarya Kunth representatives reveal the taxonomic significance of pollen morphological features and pollen characters of cultivated plants.
O. A. Gavrilova, G. A. Firsov, D. A. Gornov, A. N. Semenov, A. V. Volchanskaya   +4 more
doaj   +1 more source