Results 121 to 130 of about 27,918 (288)
Heterospory and the Angiosperms [PDF]
Nature, 1932 FOR many years it has been generally assumed by botanists that in Angiosperms, as in the heterosporous Pteridophytes, the megaspores are larger than the microspores. In a study of megaspore development in Œnothera rubricalyx (Gates and Sheffield),1 it was incidentally discovered that this is not the case.
openaire +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Early modern herbaria house important and useful data on historic environments. However, their contents are often inhospitable to scientific use. Despite this challenge, once their contents have been deciphered, such specimens present novel research opportunities.
Madeline E. White, Stephen A. Harris
wiley +1 more source
Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution [PDF]
, 2019 The flowering plants that dominate modern vegetation possess leaf gas exchange potentials that far exceed those of all other living or extinct plants.
Kvacek, Jiri +10 more
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Instability of Plastid DNA in the Nuclear Genome [PDF]
, 2009 Functional gene transfer from the plastid (chloroplast) and mitochondrial genomes to the nucleus has been an important driving force in eukaryotic evolution.
Timmis, J. +5 more
core +2 more sources
Gene turnover in the common ancestor of all C4 grasses
PLANTS, PEOPLE, PLANET, EarlyView.Understanding how plants evolve more efficient photosynthesis is important in a warming world where improving crop productivity and resilience is a global priority. By generating the first reference genomes for an early‐diverging group of grasses called the Aristidoideae, we were able to reconstruct the genetic makeup of the last common ancestor of all
Lara Pereira +6 more
wiley +1 more source
Assembling The Angiosperm Tree Of Life: Progress And Future Prospects [PDF]
, 2010 Over the past two decades there has been remarkable progress in resolving angiosperm phylogeny and patterns of evolution. Analyses of large, primarily plastid molecular data sets have revealed new insights into numerous historically contentious ...
Burleigh, J. Gordon +13 more
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The most threatened plants receive the least scientific attention
PLANTS, PEOPLE, PLANET, EarlyView.Plants sustain all life, providing the energetic and structural basis of ecosystems, but they face a growing risk of extinction. Reversing this decline requires an understanding of how scientific knowledge is distributed among species, and identification of the biases and gaps that hinder effective responses to the threats they face. However, we reveal
Renon S. Andrade +3 more
wiley +1 more source
Plastid developmental pathways in some angiosperm reproductive cells [PDF]
, 1992 Plastid developmental pathways in some angiosperm reproductive ...
P Taylor (9869549) +3 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Xylem anatomy underpins the capacity of trees to transport water while avoiding hydraulic failure, shaping species performance and resilience to climate change. However, the specific ways anatomical traits underpin hydraulic trade‐offs in tropical forests remain debated.
Julia Valentim Tavares +8 more
wiley +1 more source
The predatory behavior of ants: an impressive panoply of morphological adaptations
Insect Science, EarlyView.This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source