منابع مشابه
Seed germination and vigor.
Germination vigor is driven by the ability of the plant embryo, embedded within the seed, to resume its metabolic activity in a coordinated and sequential manner. Studies using "-omics" approaches support the finding that a main contributor of seed germination success is the quality of the messenger RNAs stored during embryo maturation on the mother plant. In addition, proteostasis and DNA inte...
متن کاملStandardization of Seed Vigor Tests
The last 30 years have led to increasing dissatisfaction by seed producers and consumers with the standard germination test as the sole criterion of seed performance potential presented on a seed label. As a result, new seed testing techniques have been formulated known as seed vigor tests that provide more sensitive measures of seed quality. The ISTA and AOSA Vigor Test Committees have been at...
متن کاملNew approaches to immunotoxicity testing.
New approaches to immunotoxicity testing are reviewed and discussed. A method of activating T-cells in vivo is presented which circumvents artifacts dur to viability effects encountered with in vitro mitogen assays. The use of adoptive transfer approaches to combine the advantages of in vitro manipulation with in vivo function assays is discussed relative to natural killer cells. The need for a...
متن کاملProteome Analysis of Poplar Seed Vigor
Seed vigor is a complex property that determines the seed's potential for rapid uniform emergence and subsequent growth. However, the mechanism for change in seed vigor is poorly understood. The seeds of poplar (Populus × Canadensis Moench), which are short-lived, were stored at 30 °C and 75 ± 5% relative humidity for different periods of time (0-90 days) to obtain different vigor seeds (from 9...
متن کاملNew Approaches to Prefrontal Lobe Testing
This chapter addresses the assessment of functions related to the prefrontal region within frontal lobes. It is proposed in this chapter that the neuropsychological assessment of the prefrontal region of the brain can be divided into four functional categories: (1) executive cognitive, (2) behavioral/emotional self-regulatory, (3) activation regulating, and (4) metacognitive processes. The gene...
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ژورنال
عنوان ژورنال: Scientia Agricola
سال: 1998
ISSN: 0103-9016
DOI: 10.1590/s0103-90161998000500005