Results 261 to 270 of about 1,079,259 (346)

Experiments on the Generation of Insects

open access: green, 1912
Francisco Redi   +6 more
openalex   +2 more sources

Floral shape and color impact heat accumulation and thermal stability of the floral microenvironment in a subalpine meadow

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The floral thermal microenvironment impacts plant reproduction through its effects on gametophyte performance and plant–pollinator interactions. Color and shape are axes of floral variation that may mediate floral temperature because they affect the absorption and reflection of solar radiation, but their interactive effects are unclear.
Jennifer S. Apland   +2 more
wiley   +1 more source

Biosilicification in monocots: Comparative analysis highlights contrasting patterns of deposition

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise New insights into biomineral uptake and sequestration are important for understanding how plants grow. Some plants accumulate silica accretions in precise locations in particular cells. Among monocots, controlled biosilicification occurs in several different forms and is restricted to commelinids and orchids. Methods We utilized energy‐
Paula J. Rudall   +2 more
wiley   +1 more source

An Atomically Dispersed Photocatalyst for Undirected para‐Selective C─H Bond Functionalizations

open access: yesAngewandte Chemie, EarlyView.
This study presents an atomically dispersed recyclable heterogeneous photocatalytic method for para‐selective trifluoromethylation of electron‐deficient arenes without directing groups. Unlike previous substrate‐dependent approaches, this recyclable, atomically dispersed photocatalyst enables scalable synthesis of bioactive trifluoromethylated ...
Suman Pradhan   +16 more
wiley   +2 more sources

Enantiopure Chiral Crystals: A Powerful Tool for Absolute Asymmetric Synthesis

open access: yesAsian Journal of Organic Chemistry, EarlyView.
This review covers absolute asymmetric syntheses, which allow the preparation of enantiomerically enriched chiral compounds from achiral precursors. By exploiting the crystallization of certain compounds as a conglomerate, enantiopure chiral crystals are spontaneously obtained.
Jiacheng Li, Valérie Alezra
wiley   +1 more source

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