Results 81 to 90 of about 285,934 (157)

Alkaloids from (Amaryllidaceae)

open access: yesNatural Product Communications, 2013
In this study, the South African Amaryllid Boophone haemanthoides was examined for its phytochemical composition and cytotoxicity. In the process eight alkaloid structures, including the new compound distichaminol, were identified in bulb ethanolic ...
Jerald J. Nair   +4 more
doaj   +1 more source

Developmental biology of wood formation [PDF]

open access: yes, 2003
The wood-forming vascular cambium is responsible for the production of a large part of the biomass on this planet. Yet, there is only limited knowledge on how cell proliferation and differentiation in the cambial meristem are regulated.
Schrader, Jarmo
core  

Soil biodiversity: functions, threats and tools for policy makers [PDF]

open access: yes, 2010
Human societies rely on the vast diversity of benefits provided by nature, such as food, fibres, construction materials, clean water, clean air and climate regulation.
Benito, Patricia   +8 more
core   +2 more sources

Involvement of Abscisic Acid in Transition of Pea (Pisum sativum L.) Seeds from Germination to Post-Germination Stages

open access: yesPlants
The transition from seed to seedling represents a critical developmental step in the life cycle of higher plants, dramatically affecting plant ontogenesis and stress tolerance.
Galina Smolikova   +9 more
doaj   +1 more source

High efficiency protoplast isolation from in vitro cultures and hairy roots of Maesa lanceolata [PDF]

open access: yes, 2010
In vitro cultures of the medicinal plant Maesa lanceolata were established to enable the cultivation of plant material for the production of protoplasts.
Geelen, Danny, Lambert, Ellen
core   +1 more source

Editorial: Growth regulators and biostimulants: upcoming opportunities

open access: yesFrontiers in Plant Science, 2023
Shubhpriya Gupta   +5 more
doaj   +1 more source

Cytokinin depends on GA biosynthesis and signaling to regulate different aspects of vegetative phase change in Arabidopsis

open access: yesNature Communications
The vegetative juvenile-to-adult transition (vegetative phase change) is a critical phase in plant development, the timing of which is controlled by the highly conserved age pathway, comprising the miR156/miR157-SPL module and the downstream miR172-AP2 ...
Sören Werner   +2 more
doaj   +1 more source

Plant regeneration from leaf-derived callus cultures of Primrose (Primula vulgaris) [PDF]

open access: yes, 2016
Efficient micropropagation of Primula species is important both for fundamental scientific studies and commercial applications. Primula vulgaris, along with other Primulaceae species, exhibits floral heteromorphy with two distinct forms of hermaphroditic
Gilmartin, Philip   +4 more
core  

ttl mutants are impaired in cellulose biosynthesis under osmotic stress [PDF]

open access: yes, 2018
As sessile organisms, plants require mechanisms to sense and respond to the challenging environment, that encompass both biotic and abiotic factors that results in differential development.
Amorim-Silva, Vitor   +6 more
core  

A Review of Plant Growth Substances: Their Forms, Structures, Synthesis and Functions [PDF]

open access: yes, 1988
Plant growth substances are compounds, either natural or synthetic that modifies or controls through physiological action, the growth and maturation of plants. If the compound is produced within the plant, it is called a plant hormone or phytohormone. In
Agboola, D. A. (D)   +3 more
core  

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