Results 71 to 80 of about 144 (131)

Allantoate Amidohydrolase OsAAH is Essential for Preharvest Sprouting Resistance in Rice

Rice
Preharvest sprouting (PHS) is an undesirable trait that decreases yield and quality in rice production. Understanding the genes and regulatory mechanisms underlying PHS is of great significance for breeding PHS-resistant rice.
Ting Xie, Wenling Hu, Jiaxin Shen, Jiangyu Xu, Zeyuan Yang, Xinyi Chen, Peiwen Zhu, Mingming Chen, Sunlu Chen, Hongsheng Zhang, Jinping Cheng   +10 more
doaj   +1 more source

Hidden Nickel Deficiency? Nickel Fertilization via Soil Improves Nitrogen Metabolism and Grain Yield in Soybean Genotypes

Frontiers in Plant Science, 2018
Nickel (Ni)—a component of urease and hydrogenase—was the latest nutrient to be recognized as an essential element for plants. However, to date there are no records of Ni deficiency for annual species cultivated under field conditions, possibly because ...
Douglas Siqueira Freitas, Bruna Wurr Rodak, André Rodrigues dos Reis, Fabio de Barros Reis, Teotonio Soares de Carvalho, Joachim Schulze, Marco A. Carbone Carneiro, Luiz R. Guimarães Guilherme   +7 more
doaj   +1 more source

Nitrogen Metabolism of Stizolobium aterrimum Grown in Soil Under Toxic Concentrations of Copper (Cu)

Horticulturae
Copper (Cu) is a naturally occurring element in soils, and at adequate concentrations, it is essential for plant survival. However, excessive Cu can lead to contamination, impairing soil quality and affecting the development of living organisms.
Beatriz Gonçalves Pereira Costa, Jailson Vieira Aguilar, Beatriz Silvério dos Santos, Maiara Luzia Grigoli Olivio, Roberta Possas de Souza, Tassia Caroline Ferreira, Allan de Marcos Lapaz, Lucas Anjos de Souza, Liliane Santos de Camargos   +8 more
doaj   +1 more source

Avaliação qualitativa e quantitativa da microbiota do solo e da fixação biológica do nitrogênio pela soja Quantitative and qualitative evaluations of soil microbes and biological nitrogen fixation in soybean

Pesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi definir, para as condições edafoclimáticas do Brasil, níveis aceitáveis de dispersão de alguns parâmetros biológicos, utilizados em estudos de impacto ambiental de novas tecnologias usadas na cultura da soja.
Rosinei Aparecida de Souza, Mariangela Hungria, Julio Cezar Franchini, Ligia Maria de Oliveira Chueire, Fernando Gomes Barcellos, Rubens José Campo   +5 more
doaj   +1 more source

Allocation of reserve nitrogen compounds during germination of Canavalia brasiliensis seeds

Biotemas, 2013
Canavalia brasiliensis, commonly known as “feijão-bravo-do-ceará”, is an herbaceous plant with a great potential for biomass production and rusticity within the period of low water availability, coupled with the great effectiveness of nitrogen fixation ...
Leandro Ferreira Aguiar, Gilberto Costa Justino, Caroline Regazini de Sá Soares, Liliane Santos Camargos   +3 more
doaj  

Xylem sap nitrogen compounds of some Crotalaria species

Scientia Agricola, 1999
Thirteen species of Crotalaria were analysed for nitrogen compounds in the xylem root bleeding sap. Amino acids were the main form of organic nitrogen found, but only traces of ureides were present. Of the four species analysed for amino acid composition,
Vitória Angela Pierre, Sodek Ladaslav
doaj  

Diurnal Changes in the Transport Rates of Ureides, Amides, Cations, Anions, and Organic Acids Estimated by Xylem Sap Exudate and the Water Flow Rate of Soybean Plants

Plants
Ureides; allantoate, allantoin, and amides; asparagine, and glutamine are the N2 fixation products in soybean root nodules, and they are transported through xylem vessels.
Ryo Toyoda, Kyoko Higuchi, Akihiro Saito, Takuji Ohyama   +3 more
doaj   +1 more source

Foliar application of allantoin reinforces antioxidant defense and glyoxalase systems to confer tolerance against arsenic toxicity in rice (Oryza sativa L.)

BMC Plant Biology
Background Arsenic (As) contamination is a pressing global challenge that substantially restricts crop productivity and growth due to its increasing prevalence in agricultural soils.
Mirza Hasanuzzaman, Samiul Alam, Abida Sultana, Umme Kulsum Sabiha, Md. Mahabub Alam, P.V. Vara Prasad   +5 more
doaj   +1 more source

Application of Protein Hydrolysate Improved the Productivity of Soybean under Greenhouse Cultivation

Agriculture
Protein hydrolysates are plant biostimulants containing amino acids, oligopeptides, and peptides in their composition. When supplied to plants, protein hydrolysates (HPs) have been identified to improve nitrogen metabolism, enhance the activity of ...
Daniele Caroline Hörz Engel, Daniela Feltrim, Mayara Rodrigues, João Leonardo Corte Baptistella, Paulo Mazzafera   +4 more
doaj   +1 more source

Physiological Responses of Crotalaria spp. to the Presence of High Aluminum Availability in the Soil

Plants
Brazilian soils are predominantly rich in aluminum, which becomes mobile at pH < 5, affecting sensitive plants; however, some species have developed aluminum tolerance mechanisms.
Beatriz Silvério dos Santos, Tassia Caroline Ferreira, Maiara Luzia Grigoli Olívio, Lucas Anjos de Souza, Liliane Santos de Camargos   +4 more
doaj   +1 more source