Results 91 to 100 of about 53,201 (321)
Біологічні студії, 2010 Published data about phytohormonal regulation of growth processes of the stem were analyzed. We investigated the content of free and bound forms of indolilacetic and abscisic acids in the internodes of growing maize stem on the stage of five and seven ...
M. M. Shcherbatyuk, K. M. Sytnik
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Is Amino-Acid Homochirality Due To Asymmetric Photolysis In Space? [PDF]
arXiv, 1999 Amino acids occurring in proteins are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation.
arxiv
Are Strong Bronsted Acids Necessarily Strong Lewis Acids? [PDF]
arXiv, 2006 The Broensted and Lowry acid base theory is based on the capacity of proton donation or acceptance (in the presence or absence of a solvent) whereas the Lewis acid base theory is based on the propensity of electron pair acceptance or donation. We explore through DFT calculation the obvious question whether these two theories are in conformity with each
arxiv
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo +8 more
wiley +1 more source
OENO One, 1981 Seven seed categories of more than 10.000 berries were studied. The abscisic acid content depends on both the number of seeds per berry and their localisation in the locules of the ovary. The classification of the seven categories based on their abscisic
Michel Broquedis, Jacques Bouard
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The Factors of the Classification of Protein Amino Acids [PDF]
This paper is published in GLASNIK of Montenegrin Academy of
Science and arts, 2000, 13, pp. 173-194, 2006 In this work it is shown that three pairs of the factors appear to be the key, i.e. main factors of a natural classification of protein (canonical) amino acids within the amino acid (genetic) code. First pair: the factors of the habit of an amino acid molecule (size and polarity).
arxiv
Abscisic Acid and Cutout in Cotton [PDF]
Plant Physiology, 1985 A decline in growth, flowering, and boll (fruit) retention is referred to as cutout in cotton (Gossypium hirsutum L.). Fruit load affects cutout, possibly through hormonal effects. Experiments were conducted to test the hypothesis that fruits are a source of abscisic acid (ABA) that moves into fruiting branches and growing points where it inhibits ...
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Abscisic acid metabolism and transport
, 2019 Abscisic acid (ABA) plays important roles in plant responses to abiotic and biotic stresses as well as in the regulation of seed development and germination. Most often physiological responses mediated by ABA are well correlated with hormone contents, which are determined by the balance between the rate of biosynthesis and catabolism.
Seo, Mitsunori, Marion-Poll, Annie
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Journal of Ecology, EarlyView.A first herbivore attack primes direct and indirect defences of newly formed oak leaves and, the specific display of defence priming is regulated by rhythmic growth, and modulated by the interaction with the ectomycorrhizal fungus Piloderma croceum. Therefore, the priming memory in oaks can be transmitted to the next growth cycle. GC, growth cycle; SF,
I. Fernández +8 more
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Frontiers in Plant Science, 2017 Bud outgrowth is a key process in the elaboration of yield and visual quality in rose crops. Although light intensity is well known to affect bud outgrowth, little is known on the mechanisms involved in this regulation.
Adrien Corot +9 more
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