Histo-anatomical pattern, degradability and secondary compounds in different accessions of maniçoba (Manihot spp.) and different stages of maturation

IF 0.9 4区农林科学 Q3 AGRONOMY

Revista Caatinga Pub Date : 2023-01-01 DOI:10.1590/1983-21252023v36n422rc

Kleitiane B. da Silva, Divan S. da Silva, Mailson M. do Rêgo, Alberício P. de Andrade, Janieire D. C. de Bezerra

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Abstract

ABSTRACT The objectives of this work were to characterize the histo-anatomical pattern and degradability and to determine the secondary compounds of maniçoba in the different accessions and maturation stages (young, mature and senescent). For the research, three accessions were selected (AC002, AC004 and AC038) from the municipalities of Barra de Santa Rosa, Monteiro and Boa Vista, respectively, which showed distinct genetic characteristics, such as morphological and agronomic characteristics, chemical composition and hydrocyanic acid content. The leaf blades showed a cuticle that covers the entire epidermis, with papillose cells in the abaxial region and in a tabular shape in the adaxial region. The cells on the abaxial side are thinner than on the adaxial side. In the phytochemical screening of maniçoba leaves, the presence of steroids, tannins, flavonoids and saponins was observed. The leaves of maniçoba (Manihot ssp.) showed absence of alkaloids in all stages and accessions evaluated. All accessions evaluated showed positivity for the presence of steroids, with superiority in accession 04 in all stages, while for the other accessions it decreased with the maturation of the plant, especially in accession 02. The presence and concentration of secondary metabolites vary between accessions and maturation stages.

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不同品种和不同成熟阶段马尼帕拉巴的组织解剖形态、可降解性和次生化合物

摘要:本研究的目的是表征马尼帕拉巴的组织解剖模式和可降解性，并确定马尼帕拉巴在不同的加入和成熟阶段(年轻、成熟和衰老)的次生化合物。选取巴拉德圣罗莎市、蒙泰罗市和博阿维斯塔市3个表现出形态、农艺、化学成分和氢氰酸含量等明显遗传特征的材料AC002、AC004和AC038作为研究材料。叶片呈覆盖整个表皮的角质层，叶片背面有乳头状细胞，叶片正面呈扁平状。背面的细胞比正面的细胞薄。在马尼帕树叶的植物化学筛选中，观察到甾体、单宁、黄酮类和皂苷的存在。马尼帕(Manihot ssp.)叶片在各发育阶段和各评价材料中均不含生物碱。所有被评价的材料均呈甾体阳性，在各个时期均以品种04表现出优势，而其他品种的甾体阳性随着植株成熟程度的增加而降低，尤其是品种02。次生代谢物的存在和浓度在不同的品种和成熟期有所不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Caatinga AGRONOMY-

CiteScore

2.10

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976. Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.