Leaf and Stem Anatomy of Cherry Tomato Under Calcium and Magnesium Deficiencies
Braz. arch. biol. technol
;
63: e20180670, 2020. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-1132160
ABSTRACT
Abstract Studies evaluating the influence of nutrients on plant anatomy are very important because nutritional deficiencies can alter the thickness and shape of certain tissues, compromising their functionality what can explain the reduction of productivity. The aim of this study was to characterize the anatomical changes in cherry tomato plants subjected to calcium (Ca) and magnesium (Mg) deficiencies. The experiment was conducted in nutrient solution and the plants subjected to three treatments complete solution (Control), Ca restriction (1 mmol L-1 of Ca) and Mg omission (without Mg). The experimental design was completely randomized, with three repetitions. Sixty days after seedling transplanting leaves and stem were collected and submitted to anatomical evaluations. Ca or Mg deficiency promotes most evident anatomical changes in chlorophyllous and vascular tissues of the leaves, rather than in the stems. Leaves of 'Sindy' tomato plants with a concentration of 1.7 g kg-1 of Mg and visual symptoms of Mg deficiency present hyperplasia of both tissues, phloem and xylem. This deficiency also promotes increases in the thickness of mesophyll, spongy parenchyma and palisade parenchyma, and consequently of leaf thickness. The midrib of the leaves with a concentration of 10 g kg-1 of Ca, without visual symptoms of deficiency presented phloem hypertrophy and hyperplasia.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Calcio
/
Solanum lycopersicum
/
Tallos de la Planta
/
Hojas de la Planta
/
Magnesio
Tipo de estudio:
Ensayo Clínico Controlado
Idioma:
Inglés
Revista:
Braz. arch. biol. technol
Asunto de la revista:
Biologia
Año:
2020
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Federal University of Minas Gerais/BR
/
Federal University of Viçosa/BR
/
Universidade Federal de Viçosa/BR
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