Results 81 to 90 of about 28,180 (235)

Distinct Defence Mechanisms of Allelopathic Rice Against Quinclorac‐Susceptible and ‐Resistant Barnyardgrass: Involvement of Specific Metabolites and Rhizosheath Microbiota

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Allelopathic rice is increasingly recognised as a promising strategy for sustainable weed management. Resistance to the herbicide quinclorac is widespread in barnyardgrass, but it remains unclear whether allelopathic rice exerts the same defence against herbicide‐susceptible and ‐resistant barnyardgrass. We conducted integrated transcriptomic,
Shuyan Li   +5 more
wiley   +1 more source

A Review on Daphnane-Type Diterpenoids and Their Bioactive Studies

open access: yesMolecules, 2019
Natural daphnane diterpenoids, mainly distributed in plants of the Thymelaeaceae and Euphorbiaceae families, usually include a 5/7/6-tricyclic ring system with poly-hydroxyl groups located at C-3, C-4, C-5, C-9, C-13, C-14, or C-20, while some special ...
Yue-Xian Jin   +6 more
doaj   +1 more source

Diterpene Synthases and Their Responsible Cyclic Natural Products [PDF]

open access: yes, 2014
This review provides an overview of diterpene synthases which were initially identified via genetic and/or biochemical means, traversing all organisms researched to ...
Hai-Yan Gong, Xiao-Ya Chen, Ying Zeng
core   +1 more source

The Rice Cis‐Natural Antisense Transcript NAT1850 of Pri‐miR1850 Negatively Regulates Cold Tolerance by Repressing NPR3

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Natural antisense transcripts (NATs) correspond to nearly 60% of annotated rice loci, however their functions are largely unknown. In this study, we characterise a rice cis‐NAT (NAT1850) that completely overlaps with a rice‐specific primary miRNA, pri‐miR1850.
Yang Shen   +11 more
wiley   +1 more source

Bioactive Dimeric Abietanoid Peroxides from the Bark of Cryptomeria japonica

open access: yesMolecules, 2019
Three new dimeric abietane-type diterpenoids, abieta-6,8,11,13-tetraen-12-yl 12-hydroxyabieta-8,11,13-trien-7α-yl peroxide (1), abieta-6,8,11,13-tetraen-12-yl 12-hydroxyabieta-8,11,13-trien-7β-yl peroxide (2), and 12-hydroxyabieta-8,11,13-trien-
Chi-I Chang   +6 more
doaj   +1 more source

Catalytic enantioselective synthesis of quaternary carbon stereocentres. [PDF]

open access: yes, 2014
Quaternary carbon stereocentres-carbon atoms to which four distinct carbon substituents are attached-are common features of molecules found in nature. However, before recent advances in chemical catalysis, there were few methods of constructing single ...
Overman, Larry E, Quasdorf, Kyle W
core  

Roman diet and trade: evidence from organic residues on pottery sherds recovered at the Roman town of Calleva Atrebatum (Silchester Hants.) [PDF]

open access: yes, 2008
The analysis of organic residues from pottery sherds using Gas-Chromatography with mass-spectroscopy (GC-MS) has revealed information about the variety of foods eaten and domestic routine at Silchester between the second and fourth–sixth centuries A.D ...
Copley   +16 more
core   +1 more source

Functional Characterisation of HAIRPLUS (NtHAP) Genes Involved in Trichome Development and Specialised Metabolism of Tobacco

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Plant glandular trichomes are specialised epidermal structures capable of synthesising, storing and secreting numerous varieties of secondary metabolites in different classes and are central to plant defence and the biosynthesis of high‐value metabolites.
Hai Liu   +4 more
wiley   +1 more source

Traversing the effects of ploidy changes in different Eragrostis curvula genotypes through high‐throughput RNA sequencing

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Polyploidization has played a key role in plant genome evolution. Eragrostis curvula (Schrad.) Ness, a perennial forage grass species of the Poaceae family, is an excellent model for investigating genome duplication due to its natural variation in ploidy levels.
D. F. Santoro   +5 more
wiley   +1 more source

New Sesquiterpenoids and a Diterpenoid from Alpinia oxyphylla

open access: yesMolecules, 2015
The new compounds 2-methyl-6-isopropyl-7-hydroxymethyl naphthalene (1), oxyphyllenone H (2), epi-oxyphyllenone (6), (E)-labda-12,14-dien-15(16)-olide-17-oic acid (3), and two new natural products 4 and 5 were isolated from the ethyl acetate part of 95 ...
Lei Hou   +6 more
doaj   +1 more source

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