Chitinase and β-1,3-glucanase enzymatic activities in response to infection by Alternaria alternata evaluated in two stages of development in different tomato fruit varieties

2007 ◽  
Vol 112 (1) ◽  
pp. 42-50 ◽  
Author(s):  
I.E. Cota ◽  
R. Troncoso-Rojas ◽  
R. Sotelo-Mundo ◽  
A. Sánchez-Estrada ◽  
M.E. Tiznado-Hernández
Keyword(s):  
Alternaria Alternata ◽  
Tomato Fruit ◽  
Enzymatic Activities ◽  
Stages Of Development ◽  
Two Stages

scholarly journals Contrasted responses to carbohydrate limitation in tomato fruit at two stages of development

2002 ◽  
Vol 25 (12) ◽  
pp. 1639-1649 ◽  
Author(s):  
P. BALDET ◽  
C. DEVAUX ◽  
C. CHEVALIER ◽  
R. BROUQUISSE ◽  
D. JUST ◽  
...  
Keyword(s):  
Tomato Fruit ◽  
Stages Of Development ◽  
Two Stages

Contrasted Responses to Root Hypoxia in Tomato Fruit at Two Stages of Development

2010 ◽  
Vol 54 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Faouzi Horchani ◽  
Holmi Khayati ◽  
Samira Aschi-Smiti
Keyword(s):  
Tomato Fruit ◽  
Stages Of Development ◽  
Root Hypoxia ◽  
Two Stages

scholarly journals Resistance of Tomato Fruit (rin and nor Type) to Postharvest Diseases Depends on Stage of Maturity

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 642c-642
Author(s):  
R. Garca-Estrad ◽  
J. Siller-Cepeda ◽  
M. Bez ◽  
M. Muy ◽  
E. Araiza
Keyword(s):  
Alternaria Alternata ◽  
Tomato Fruit ◽  
High Yield ◽  
Resistant Variety ◽  
Rhizopus Stolonifer ◽  
Normal Type ◽  
Postharvest Diseases ◽  
Fungus Infection ◽  
New Varieties ◽  
Two Stages

On Sinaloa State, tomato growers test new varieties every year looking high yield, better quality and long shelf life. However, few studies are done to know the resistance to postharvest diseases. The objective was to identify postharvest pathogens that infect this new tomato varieties with characteristics rin, nor or normals (BR84, S211, S69, and S121). Fruits in two stages of maturity (pink and red) were harvested and stored under simulated marketing conditions (20°C and 80% RH). Pathogens found were aisled on PDA and identified under microscope. Different chemicals were tested to control pathogens [NaOCl; Ca(OCl)2; Supersana; iodine; Citrucidal; Captan; and water]. Six fungus species—Alternaria alternata, Fusarium oxysporium, Rhizopus stolonifer, Colletotrichum sp., Rhyzoctonia sp, and Phomopsis sp—were found on all varieties. BR84 fruit (rin type) harvested on pink stage were more resistant than red ones. S69 fruit (nor type) were more susceptible at the pink than at the red stage. S121 fruits (normal type) were equally susceptible at both stages of maturity. Least resistant variety to fungus infection at both stages of maturity was S211 (rin type). Citrucidal and Ca(OCl)2 gave the best control.

Isoleucine Need of Swine at Two Stages of Development

1963 ◽  
Vol 22 (4) ◽  
pp. 1093-1096 ◽  
Author(s):  
D. E. Becker ◽  
I. D. Smith ◽  
S. W. Terrill ◽  
A. H. Jensen ◽  
H. W. Norton
Keyword(s):  
Stages Of Development ◽  
Two Stages

Sensitivity of Danio rerio (Teleostei, Cyprinidae) During Two Stages of Development Based on Acute Toxicity Tests

2014 ◽  
Vol 93 (4) ◽  
pp. 442-445 ◽  
Author(s):  
R. Freiry ◽  
J. A. A. Stelzer ◽  
L. Maltchik ◽  
A. Arenzon
Keyword(s):  
Acute Toxicity ◽  
Danio Rerio ◽  
Toxicity Tests ◽  
Stages Of Development ◽  
Acute Toxicity Tests ◽  
Two Stages

scholarly journals The blood-corpuscle considered in its different phases of deve­lopment in the animal series

1851 ◽  
Vol 5 ◽  
pp. 558-559
Keyword(s):  
Blood Cell ◽  
Granule Cells ◽  
Blood Corpuscle ◽  
Stages Of Development ◽  
Third Phase ◽  
A Cell ◽  
Last Stage ◽  
Two Stages ◽  
Oval Shape ◽  
Solvent Action

This paper is divided into three parts: the first relating to the blood-corpuscles of the Vertebrata ; the second to those of the In-vertebrata ; and the last to a comparison between the two. He first describes the microscopic appearances of these corpuscles in differ­ent classes of vertebrate animals, beginning with the skate and the frog, and proceeding to birds and mammifera; first in their early embryonic state, and next in the subsequent periods of their growth. He finds in oviparous vertebrata generally, four principal forms of corpuscles. These he distinguishes as the phases, first of the gra­nule blood-cell , which he describes as a cell filled with granules, dis­closing by the solvent action of dilute acetic acid on these granules a vesicular, or as the author terms it, a “ cellœform ” nucleus. These granule cells appear under two stages of development, namely, the coarsely granulous stage and the finely granulous stage. The se­cond phase is that of the nucleolated blood-cell , oval in shape, con­taining a vesicular (or “cellæform”) nucleus, and red-coloured mat­ter. These cells likewise appear under two stages of development; colourless in the first and coloured in the second, in which last stage it constitutes the red corpuscle. In the early mammiferous embryo, he finds, in addition to the former, a third phase, that of free vesicu­lar nucleus , exhibiting, like the nucleolated cell, the colourless and the coloured stages. On examining the corpuscles of the lymph of vertebrate animals, the author finds them in all the classes to be identical in structure with their blood-corpuscles, and differing only in the inferior degree of coloration attending their last stage. In the oviparous classes, he observes that the nucleolated are more numerous than the granule cells, while in the mammifera the latter are predominant, which is the reverse of the proportion in which they exist in the blood of these animals. He finds that some of the nucleolated cells of the contents of the thoracic duct exhibit a marked degree of coloration, and have an oval shape; thus offering a resemblance to the blood of the early embryonic state.

scholarly journals Dilated and contracted forms of primary endocardial fibroelastosis: a single fetal disease with two stages of development.

Heart ◽  
1990 ◽  
Vol 63 (5) ◽  
pp. 311-313 ◽  
Author(s):  
A M Carceller ◽  
E Maroto ◽  
J C Fouron
Keyword(s):  
Endocardial Fibroelastosis ◽  
Stages Of Development ◽  
Two Stages

OXIDATION OF L-AMINO ACIDS AND INCORPORATION INTO PROTEIN IN HOMOGENATES OF BRAIN AT TWO STAGES OF DEVELOPMENT

1963 ◽  
Vol 10 (11) ◽  
pp. 825-829 ◽  
Author(s):  
Bernard Schepartz ◽  
Martha Turczyn
Keyword(s):  
Amino Acids ◽  
Stages Of Development ◽  
Two Stages

COLD HARDENING AND COLD HARDINESS OF YOUNG WINTER RYE SEEDLINGS AS AFFECTED BY STAGE OF DEVELOPMENT AND TEMPERATURE

1960 ◽  
Vol 38 (3) ◽  
pp. 353-363 ◽  
Author(s):  
J. E. Andrews
Keyword(s):  
Winter Wheat ◽  
Cold Hardiness ◽  
Rapid Decrease ◽  
Genetic Differences ◽  
Cold Hardening ◽  
Winter Rye ◽  
Stages Of Development ◽  
Stage Of Development ◽  
High Level ◽  
Two Stages

Young winter rye seedlings, grown and hardened at 1° or 1.5 °C in the dark, developed a high level of cold hardiness at two stages prior to emergence of the first leaf. The first maximum occurred when coleoptiles were less than about 1 mm in length and was followed by a decrease in hardiness. A second and higher maximum occurred when coleoptiles were about 15–30 mm in length (5 weeks at 1.5 °C; 7 weeks at 1 °C) and it was followed by a rapid decrease in hardiness beginning at about the time the leaf broke through the coleoptile. Genetic differences corresponding with those obtained in the field were established by hardening seedlings for 7 weeks at 1 °C and exposure to −15 °C for 16 hours or by hardening for 5 weeks at 1.5 °C and exposure to −14 °C for 16 hours. The use of a lower (−4 °C) hardening temperature resulted in a large increase in cold hardiness at the younger stages of development but little or no increase where seedlings had already reached a maximum of hardiness from exposure to 1.5 °C for 5 weeks. Satisfactory genetic differences were not determined by exposure to −14 °C for 16 hours after hardening at −4 °C. In general the response to hardening of young winter rye seedlings was similar to that found with winter wheat.

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