Results 131 to 140 of about 100,456 (344)

Ecotoxicological Evaluation of the Antimicrobial Butylparaben in Edaphic Organisms Using Multiple Biomarkers

Environmental Toxicology, EarlyView.
ABSTRACT Butylparaben (BuP) recurrently contaminates soils worldwide, mainly by incorporating sewage sludge into cultivated areas, using wastewater in irrigation, and leaching contaminated soils. However, there are few studies on the ecotoxicological effects of this paraben on edaphic organisms.
Lorena Maihury Santos Tsubouchi, Edson Araújo de Almeida, Diane Scapin, Anna Karolina Gomes Oliveira, Cassiano Aparecido de Souza, Diego Espirito Santo, Carmem Lúcia Henrich, Ana Elisa Maehashi, Gideã Taques Tractz, Craig Allan Downs, Osvaldo Valarini Junior, Regiane da Silva Gonzalez, Elisângela Düsman, Ana Paula Peron   +13 more
wiley   +1 more source

Ação do BAP na regeneração in vitro de Blc Owen Holmes Ponkan x Brassavola digbiana nº 2 BAP (6-benzylaminopurine) in the regeneration in vitro of Blc Owen Holmes Ponkan x Brassavola digbiana nº 2

Ciência e Agrotecnologia, 2007
A Cattleya é considerada a mais bela e procurada de todas as orquídeas. Esta demanda cria a necessidade do desenvolvimento de técnicas mais eficazes de propagação que ofereçam maior número de indivíduos em período de tempo e espaço físico reduzido, além ...
Luciana Giatti, Giuseppina Pace Pereira Lima   +1 more
doaj   +1 more source

The WIGGUM gene is required for proper regulation of floral meristem size in Arabidopsis [PDF]

, 1998
The study of cell division control within developing tissues is central to understanding the processes of pattern formation. The floral meristem of angiosperms gives rise to floral organs in a particular number and pattern.
Fletcher, Jennifer C., Meyerowitz, Elliot M., Running, Mark P.   +2 more
core  

Ecotoxicological Evaluation of Organic Sunscreens Used Worldwide, Alone and in Mixture, on Terrestrial Plants

Environmental Toxicology, EarlyView.
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo, Edson Araújo de Almeida, Elisângela Dusman, A. C. Downs, Regiane da Silva Gonzalez, Osvaldo Valarini Junior, Ana Paula Peron   +6 more
wiley   +1 more source

Response of meristem cells to hyperoxygenation

Biology of the Cell, 1990
Summary— Cycle parameters were estimated in Allium cepa L meristems proliferating under steady state conditions in tap water aerated with either 21 or 100% O2 and containing 7.9 and 39.0 mg/1 of dissolved oxygen, respectively. Cycle time was slightly but consistently reduced under hyperoxygenation, as shown in synchronous cells labelled as binucleate ...
M. Inmaculada Giménez-Abián, J.F. López-Sáez, Consuelo de la Torre   +2 more
openaire   +3 more sources

The Differential Response of Meristems ofVicia Fabato Colchicine [PDF]

, 1969
D. Davidson
openalex   +1 more source

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo, Constantin Zohner, Thomas W. Crowther, Jianlan Feng, Günter Hoch, Peng Li, Andrew D. Richardson, Yann Vitasse, Arthur Gessler   +8 more
wiley   +1 more source

Mechanical stress contributes to the expression of the STM homeobox gene in Arabidopsis shoot meristems

eLife, 2015
The role of mechanical signals in cell identity determination remains poorly explored in tissues. Furthermore, because mechanical stress is widespread, mechanical signals are difficult to uncouple from biochemical-based transduction pathways.
Benoît Landrein, Annamaria Kiss, Massimiliano Sassi, Aurélie Chauvet, Pradeep Das, Millan Cortizo, Patrick Laufs, Seiji Takeda, Mitsuhiro Aida, Jan Traas, Teva Vernoux, Arezki Boudaoud, Olivier Hamant   +12 more
doaj   +1 more source

The performance of growing degree day models to predict spring phenology of herbaceous species depends on the species' temporal niche

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The concept of growing degree days (GDDs) is commonly used to predict phenological events in plants, assuming that plants develop proportionally to the accumulated temperature. Two species‐specific parameters, TBase and t0 (minimum temperature above which and start date
Robert Rauschkolb, Tomáš Herben, Jens Kattge, Barbara Knickmann, Anja Linstädter, Annette Menzel, Karin Mora, Birgit Nordt, Yann Vitasse, Patrick Weigelt, Christine Römermann   +10 more
wiley   +1 more source

Below the leaves: Integrating above‐ and below‐ground phenology for earth‐system predictability

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Almost every aspect of biological systems has phenology—a pattern in activity or function linked to annual cycles. Most terrestrial phenology research focusses on leaves, the onset of leaf out or senescence.
Kendalynn Morris, Richard Nair
wiley   +1 more source