نتایج جستجو برای: oxalis corymbosa

تعداد نتایج: 570  

2002
César Tapia Jaime Estrella

An alarming loss of genetic variability of three Andean tubers (Ullucus tuberosus, ullucus; Oxalis tuberosa, oca; and, Tropaeolum tuberosum, mashua) has been observed during the last decades due to many factors such us the introduction of new varieties, droughts, changes in food habits, encroaching agriculture, deforestation and the migration from rural to urban areas. Thus, a pilot study was c...

Journal: :Plant physiology 1964
J Giovanelli N F Tobin

Oxalic acid is widely distributed in plants. Although its concentration is not normally high, certain plants such as Oxalis sp., Begonia sp., rhubarb, and spinach contain large amounts of the acid. Cotyledons of spinach, for example, have been reported to contain up to 26% dry weight of oxalic acid (4). The only enzyme system previously reported to metabolize oxalate in plants is oxalate oxidas...

Journal: :Plant physiology 2008
Anne Markert Nicola Steffan Kerstin Ploss Sabine Hellwig Ulrike Steiner Christel Drewke Shu-Ming Li Wilhelm Boland Eckhard Leistner

Ergoline alkaloids occur in taxonomically unrelated taxa, such as fungi, belonging to the phylum Ascomycetes and higher plants of the family Convolvulaceae. The disjointed occurrence can be explained by the observation that plant-associated epibiotic clavicipitalean fungi capable of synthesizing ergoline alkaloids colonize the adaxial leaf surface of certain Convolvulaceae plant species. The fu...

2017
Alicia López Marisa G. Bonasora

Phylogeographical patterns provide valuable insight into the historical processes underlying diversification, and may provide a better understanding of biodiversity, dispersal modes, diversification times, extinctions, refuge areas and other species-/population-level processes. Here, we examine the genetic structure of Oxalis laciniata, a representative of Oxalis, which is an important emerging...

2015
Arvind Shakya Alon Goren Alex Shalek Cody N. German Jeremy Snook Vijay K. Kuchroo Nir Yosef Raymond C. Chan Aviv Regev Matthew A. Williams Dean Tantin

Epigenetic changes are crucial for the generation of immunological memory. Failure to generate or maintain these changes will result in poor memory responses. Similarly, augmenting or stabilizing the correct epigenetic states offers a potential method of enhancing memory. Yet the transcription factors that regulate these processes are poorly defined. We find that the transcription factor Oct1 a...

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