Articles

STUDY ON CHROMIUM STORAGE IN DIFFERENT ORGANS OF PUMPKIN (C. MAXIMA DUCH)

Article number
871_70
Pages
507 – 512
Language
English
Abstract
In order to discuss whether Cr would be absorbed by pumpkin leaf and be transported to other part of plant which including chromium sub cellular distribution, the isotope (51Cr) feeding and GFAAS (graphite furnace atomic absorbing) and the pot-cultivation experiment was performed.
The results showed that the order of chromium content in different parts of pumpkin was fruit (44.3%), leaf (36.1%), root (13.3%), stem (4.2%) and flower (2.1%). The results of chromium content in dry matter showed that content in root is the highest, and in flower is the lowest and the order of content in different organs is root (7.72 kBq/g dry weight), fruit (1.06 kBq/g dry weight), leave (0.55 kBq/g dry weight), stem (0.13 kBq/g dry weight) and flower (0.13 kBq/g dry weight). Vacuole and cell wall are the main part containing chromium.
The chromium quantity in vacuole is 44.5% of the total chromium in cell, and cell wall is 37.6%, but chromium quantity in cell organ and cell membrane is only 17.8 of the total in cell.
In chromium–rich pumpkin, the chromium is distributed more in cell wall and vacuole, lower in cell organ and cell wall, but in common pumpkin, the case is different.

Publication
Authors
Yongan Cheng, Jinyin Lu, De Yang, Zunlian Zhao
Keywords
pumpkin (C. maxima Duch), chromium
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