Results 21 to 30 of about 199 (141)
Nitrogênio na água do solo do ecossistema Campina Amazônica () [PDF]
Acta Amazonica, 1975 Resumo As principais fontes de nitrogênio na água do solo do ecossistema Campina Amazônica são: o material em decomposição (litter), chuva, água de lavagem da floresta e produtos do metabolismo de microrganismos.
Antonio dos Santos +1 more
doaj +1 more source
Variation in the ureide content of Jack Bean during the reproductive stages in response to nitrate
Brazilian Archives of Biology and Technology, 2009 Nitrogen is frequently the limiting mineral nutrient for plant productivity and it is essential to obtain an understanding of how this element is assimilated and its metabolism regulated, in crop plants.
Liliane Santos Camargos +3 more
doaj +1 more source
Semina: Ciências Agrárias, 2015 O cobre, em baixas concentrações, é considerado micronutriente essencial para as plantas por ser constituinte e ativador de diversas enzimas. Porém, quando em excesso, pode afetar negativamente o crescimento, o desenvolvimento e o metabolismo vegetal ...
Cristina Copstein Cuchiara +5 more
doaj +1 more source
The tasiR‐ARF pathway in plants: origin, functions, and interplay of miR‐390, tasiRNAs and ARF3
Plant Biology, Volume 28, Issue 2, Page 328-344, March 2026.Trans‐acting small interfering RNAs that silence a subset of Auxin Response Factors are crucial for plant growth, developmental timing, proper organ patterning, and coping with stress. Abstract Trans‐acting small interfering RNA (tasiRNAs) are a special type of endogenous small RNAs (sRNAs) found only in plants.
B. A. López‐Ruiz +4 more
wiley +1 more source
New Phytologist, Volume 249, Issue 3, Page 1268-1282, February 2026.Summary Exogenously applied auxins are essential for establishing cell lines in tissue cultures and maintaining their proliferation. Cell lines may develop the ability to proliferate even in media lacking auxin, they may become auxin‐habituated. This study investigated the mechanisms underlying this process.
Pavel Jelínek +11 more
wiley +1 more source
Microbial drivers of root plasticity
New Phytologist, Volume 248, Issue 1, Page 52-67, October 2025.Summary Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, and microbial metabolisms. Plant roots adjust their development within the soil matrix (growth, branching, root angle, and anatomical features) by ...
Francisco Dini‐Andreote +5 more
wiley +1 more source
Acta Biológica Colombiana, 2008 La plasticidad fenotípica es uno de los medios por los cuales las plantas pueden ajustar su morfología y fisiología, permitiéndoles enfrentar la heterogeneidad ambiental bajo condiciones naturales. El presente estudio evaluó la plasticidad fenotípica (PF)
KATTIA PALACIO-LÓPEZ +1 more
doaj
Ciência Agrícola, 2018 O tratamento de sementes com agroquímicos é uma prática que confere maior proteção à plântulas contra pragas e doenças, no entanto poucas pesquisas são conduzidas para avaliar o efeito fisiológico desses produtos sobre a cultura do milho.
Willian Rodrigues Macedo +1 more
doaj +1 more source
EACR 2025 Congress: Innovative Cancer Science, 16-19 June 2025. [PDF]
Mol OncolAbstracts submitted to the ‘EACR 2025 Congress: Innovative Cancer Science’, from 16–19 June 2025 and accepted by the Congress Organising Committee are published in this Supplement of Molecular Oncology, an affiliated journal of the European Association for Cancer Research (EACR).
europepmc +2 more sources
New Phytologist, Volume 247, Issue 5, Page 2180-2195, September 2025.Summary Developmental processes are regulated at multiple levels, including the epigenetic level. Among the epigenetic factors, histone H3 lysine 4 (H3K4) methyltransferases contribute to active transcription of target genes, and here, we explored how the H3K4 methyltransferase ARABIDOPSIS HOMOLOG OF TRITHORAX1 (ATX1) affects Arabidopsis thaliana ...
Selene Napsucialy‐Mendivil +7 more
wiley +1 more source