Results 61 to 70 of about 52,710 (265)

Non-Destructive Assessment of Rice Seed Vigor and Extraction of Characteristic Spectra Based on Near-Infrared Spectroscopy

Photonics
Rice seed vigor is one of the critical factors determining rice yield and quality. Identifying substances related to seed vigor and rapidly assessing seed vigor by non-destructive methods are of great significance for increasing rice production.
Qing Huang, Jinxing Wei, Jiale Cheng, Mingdong Zhu, Wei Nie, Xingping Wang, Mai Hu, Zhenyu Xu, Ruifeng Kan, Wenqing Liu   +9 more
doaj   +1 more source

Qualidade fisiológica de sementes de araçazeiro durante o armazenamento Physiological quality of seeds of Psidium guineense Swartz during storage

Revista Brasileira de Engenharia Agrícola e Ambiental, 2003
O presente trabalho teve como objetivo avaliar diferentes ambientes de armazenamento e embalagens quanto à eficiência na manutenção da qualidade das sementes de araçazeiro (Psidium guineenseSwartz) durante 180 dias.
Roberta A. Cisneiros, Valderez P. Matos, Margarida A. Lemos, Odemar V. dos Reis, Rosilda de M. Queiroz   +4 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Qualidade fisiológica das sementes de sorgo sacarino submetidas à secagem em diferentes condições de ar

Revista Brasileira de Engenharia Agrícola e Ambiental, 2015
Objetivou-se, com este trabalho, analisar a qualidade fisiológica das sementes de sorgo sacarino submetidas à secagem em diferentes condições de ar.
Renan Ullmann, Osvaldo Resende, Tarcísio H. Chaves, Daniel E. C. de Oliveira, Lílian M. Costa   +4 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

The Vigor-S system as an auxiliary component of the accelerated aging test procedure in soybean seeds

Journal of Seed Science
: Computerized seedling image analysis is available as a resource for evaluating seed vigor or as an auxiliary component while carrying out different tests.
Gloria de Freitas Rocha Ribeiro, Abimael dos Santos Carmo-Filho, Rafael Mateus Alves, José de Barros França-Neto, Julio Marcos-Filho, Francisco Guilhien Gomes-Junior   +5 more
doaj   +1 more source

Hipoclorito de sódio na qualidade fisiológica e anatomia do tegumento de sementes do trifoliateiro ‘Flying Dragon’ [PDF]

Ciência e Agrotecnologia
RESUMO As mudas de porta-enxertos de citros são obtidas de sementes, cujo tegumento dificulta sua germinação e a emergência das plântulas. Assim, torna-se indispensável o desenvolvimento de métodos eficientes de remoção do tegumento para acelerar ...
Antonio Maricélio Borges de Souza, Cleidiane Alves Rodrigues, Samuel Gonçalves Ferreira dos Santos, Júlio César de Almeida Andrade, Eduardo Fontes Araujo, Mateus Pereira Gonzatto   +5 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Use of the software Seed Vigor Imaging System (SVIS®) for assessing vigor of carrot seeds

Scientia Agricola
Seed vigor has traditionally been evaluated by physiological, biochemical and stress tolerance tests. More recently, with the use of computerized image analysis, objective information has become accessible in a relatively short period of time, with less ...
José Luís de Marchi, Silvio Moure Cicero   +1 more
doaj   +1 more source