Results 51 to 60 of about 134,653 (263)
Advanced Science, EarlyView.To explore the impact of nanosizing on pesticide biointeractions, a 7‐nm (average) emamectin benzoate nanopesticide without nanocarriers or surfactants is fabricated via HOAc‐mediated disaggregation. Nanosizing enhances bioactivity against Megalurothrips usitatus and Meloidogyne enterolobii and improves plant penetration.
Jiaqi Wei +11 more
wiley +1 more source
Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization
Angewandte Chemie, EarlyView.The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu +6 more
wiley +2 more sources
Química Nova, 2009 This work describes a simple and economical experiment for the extraction and purification of chlorophyll a from Spirulina maxima. Extraction and purification of natural compounds can be considered one of the most illustrative experiments that can be ...
Ana Paula Jecks Maestrin +4 more
doaj +1 more source
Annals of Botany, 1889 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +5 more sources
A Conserved DT2‐bZIP66‐NF‐YC4 Regulatory Module Confers Drought Tolerance in Rice and Arabidopsis
Advanced Science, EarlyView.This study identifies a conserved tripartiteDT2–bZIP66–NF‐YC4 transcriptional module that enhances rice drought tolerance by activating stress‐responsive genes. This regulatory complex is functionally conserved across cereals and Arabidopsis, providing promising targets for engineering drought‐resilient crops. ABSTRACT Drought stress severely restricts
Jun Shen +18 more
wiley +1 more source
Acta Scientiarum: Biological Sciences, 2013 This study assessed the desiccation effects on biomass and algal density of periphyton in a subtropical lentic ecosystem. This experiment was conducted with only one in situ experimental desiccation event for 15 hours in a mature periphytic community ...
Vanessa Majewski Algarte +2 more
doaj +1 more source
Photodecomposition of Chlorophylls and Chlorophyll Derivatives
Eiyo To Shokuryo, 1969 クロロフィル, クロロフィリン, フェオフィチンおよびクロロフィル誘導体の銅クロロフィル, 銅クロロフィリンナトリウム, 鉄クロロフィリンナトリウムの光分解, さらにクロロフィルaの光分解に対する水分, 遷移金属 (Fe2+, Fe3+), L-アスコルビン酸の影響を検討し, 次の結果をえた。1. クロロフィルは著しい光分解をうけ, とくにクロロフィルaはbに比較してその光分解度が大きい。2. クロロフィリンはクロロフィルaより光に対してはるかに安定であるが光分解をうける。とくに溶液の濃度が薄いほど光分解度が増大する。3. フェオフィチンは光に対してやや不安定で光分解をうける。4.
Mori, Yasunori +3 more
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A Modular PLUG‐IN Photosynthetic Chassis With Tunable Thermal Control for Mammalian Systems
Advanced Science, EarlyView.This work establishes a “plug‐in” chassis compatible with mammalian systems that synchronizes growth, production, and cell‐wall re‐configuration, providing a versatile platform for photosynthetic bioproduction and microalgal synthetic biology. ABSTRACT Microalgae are promising photosynthetic platforms for high‐value compounds, yet their industrial use ...
Qinhua Gan +13 more
wiley +1 more source
AgronomyCactaceae are a significant group of ornamental plants in the horticultural market. In the present study, X-rays were used for the first time to induce mutational changes in the cactus Copiapoa tenuissima.
Piotr Licznerski +4 more
doaj +1 more source
Annual Review of Plant Physiology and Plant Molecular Biology, 1999 ▪ Abstract Although the loss of green color in senescent leaves and ripening fruits is a spectacular natural phenomenon, research on chlorophyll breakdown has been largely neglected until recently. This review summarizes knowledge about the fate of chlorophyll in degreening tissues that has been gained during the past few years. Structures of end- and
Matile P, Hortensteiner S, Thomas H
openaire +3 more sources