Results 41 to 50 of about 86,726 (311)
A number of plant microRNAs have been demonstrated to regulate developmental processes by integrating internal and environmental cues. Recently, the Arabidopsis thaliana F-box protein HAWAIIAN SKIRT (HWS) gene has been described for its role in miRNA ...
Farida Damayanti +19 more
doaj +1 more source
An extracellular transglutaminase is required for apple pollen tube growth
An extracellular form of the calcium-dependent protein-crosslinking enzyme TGase (transglutaminase) was demonstrated to be involved in the apical growth of Malus domestica pollen tube.
Coutts, IG +53 more
core +1 more source
As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle +6 more
wiley +1 more source
FORMATION OF POLLEN IN THE ANTHER OF LILIUM I. DEVELOPMENT OF THE POLLEN WALL
SUMMARY The ultrastructural changes during the microsporogenesis and gametogenesis in Lilium are studied in relation to the surrounding tissues. In this article the development of the microspore and pollen wall is presented. In relation to the increase in pollen volume the nexine is increased but this process is discontinuous.
Willemse, M.T.M., Reznickova, S.A.
openaire +2 more sources
Pollen physiology and fertilisation in Vicia Faba L [PDF]
In many legume crop species, early-formed fruits or those located closest to the photosynthate are more likely to mature than other fruits. This is so in the Vicia faba crop.
Telaye, A, Telaye, Asfaw
core
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang +8 more
wiley +1 more source
Climate variability and human impact in South America during the last 2000 years: synthesis and perspectives from pollen records [PDF]
An improved understanding of present-day climate variability and change relies on high-quality data sets from the past 2 millennia. Global efforts to model regional climate modes are in the process of being validated against, and integrated with, records
Rull, V. +65 more
core +1 more source
Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou +4 more
wiley +1 more source
Mitochondrial Dynamics for Pollen Development
Mitochondria are active organelles that move rapidly, change shape, and undergo repeated fusion and fission ([Frederick and Shaw, 2007][1]; [Tilokani et al., 2018][2]). Since mitochondria have many important roles, including respiratory energy production through the tricarboxylic acid cycle ...
openaire +3 more sources
Comparative Pollen Development in Dioscoreales [PDF]
Pollen and orbicule ontogeny in representatives of three genera of Dioscoreales—Narthecium ossifragum Huds. (Nartheciaceae), Tacca artocarpifolia Seem. and Tacca chantrieri Andre (Dioscoreaceae), and Dioscorea communis (L.) Caddick & Wilkin (Dioscoreaceae)—is described and illustrated using LM, SEM, and TEM. The main difference is in microsporogenesis,
P. Schols +4 more
openaire +2 more sources

