Results 1 to 10 of about 147,314 (297)
Pollen and Pollen Enzymes [PDF]
American Journal of Botany, 1921 A review of the literature shows very few complete or satisfactory reports of experiments in regard to either the general chemistry or the enzymes of pollen. Our knowledge of the subject seems to be very fragmentary. It is conspicuous by its omission from the textbooks of botany.
Julia Bayles Paton
openalex +4 more sources
Effects of Three Different Bee Pollen on Digestion, Immunity, Antioxidant Capacity, and Gut Microbes in Apis mellifera [PDF]
InsectsThe nutritional value of pollen for honeybees varies significantly depending on its source. This study examines the nutrient composition of three types of bee-collected pollen—Maize bee-collected pollen (MBP), Lotus bee-collected pollen (LBP), and ...
Xin-Meng Li +4 more
doaj +2 more sources
Frontiers in Plant Science, 2022 Proplastids are essential precursors for multi-fate plastid biogenesis, including chloroplast differentiation, a powerhouse for photosynthesis in plants.
Katarína Kulichová +5 more
doaj +1 more source
Plants, 2023 Somatic embryogenesis (SE) is a feasible in vitro regeneration system with biotechnological applications in breeding programs, although, in many forest species, SE is highly inefficient, mainly due to their recalcitrance. On the other hand, SE represents
Elena Carneros +5 more
doaj +1 more source
Pollen biology and hormesis: Pollen germination and pollen tube elongation
Science of The Total Environment, 2021 This paper evaluated the occurrence of hormetic dose responses in pollen reported over the past eight decades. Hormetic doses responses were induced by a wide range of chemical and physical agents in 34 plant species for pollen germination and pollen tube growth/elongation.
Evgenios Agathokleous +1 more
openaire +4 more sources
Scientific Reports, 2021 In the complex process of homeostasis of phytohormones cytokinins (CKs), O-glucosylation catalyzed by specific O-glucosyltransferases represents one of important mechanisms of their reversible inactivation.
Lenka Záveská Drábková +2 more
doaj +1 more source
Scientific Reports, 2021 Although automated pollen monitoring networks using laser optics are well-established in Japan, it is thought that these methods cannot distinguish between pollen counts when evaluating various pollen taxa. However, a method for distinguishing the pollen
Kenji Miki, Toshio Fujita, Norio Sahashi
doaj +1 more source
Journal of the Civil Engineering Forum, 2021 Floods are triggered by water overflow into drylands from several sources, including rivers, lakes, oceans, or heavy rainfall. Near real-time (NRT) flood mapping plays an important role in taking strategic measures to reduce flood damage after a flood ...
Pollen Chakma, Aysha Akter
doaj +1 more source
Pollen Germination and Pollen Tube Growth in Gymnosperms [PDF]
Plants, 2021 Pollen germination and pollen tube growth are common to all seed plants, but these processes first developed in gymnosperms and still serve for their successful sexual reproduction. The main body of data on the reproductive physiology, however, was obtained on flowering plants, and one should be careful to extrapolate the discovered patterns to ...
Maria Breygina +2 more
openaire +4 more sources
Frontiers in Plant Science, 2019 Stress-induced microspore embryogenesis is a model in vitro system of cell reprogramming, totipotency acquisition, and embryo development. After induction, responsive microspores abandon their developmental program to follow an embryogenic pathway ...
Yolanda Pérez-Pérez +5 more
doaj +1 more source