Effect of Ice Nucleation Active Bacteria on the Ultrastructure of Apricot VarietyPollen

ACTA HORTICULTURAE SINICA ›› 2001, Vol. 28 ›› Issue (5): 453-456.

• 研究报告 • Previous Articles Next Articles

Effect of Ice Nucleation Active Bacteria on the Ultrastructure of Apricot VarietyPollen

Peng Weixiu¹, Yang Jianmin¹, Zhang Qin¹, Meng Qingrui¹, Li Shaohua², Sun Fuzai³, and Zhao Tingchang³

( ¹College of Forestry , Agricultural University of Hebei, Baoding 071000; ²College of Horticulture, China Agricultural University , Beijing 100094; ³Institute of Plant Protection , CAAS, Beij ing, 100094)

Received:1900-01-01 Revised:1900-01-01 Online:2001-10-25 Published:2001-10-25

Abstract

Abstract: The ultrastructure of three kinds of Apricot pollens by INA and low temperature was investigated with transmission electron microscopy. The results showed that the ultrastructure of pollen was influenced by the INA. ( 1) The pollen exine was disintegrated by INA. ( 2) The orgalleras in pollen were destroyed. The membrane of mitochondrion vanished. The ridge of mitochondrion was changed into vesiculation; Some membraned inclusions appear to be derived
from the endoplasmic reticulm elements which arrange themselves in a multipleconcentric or convoluted manner around portions of cytoplasm; The quantity of ribosome was reduced. Because the orgalleras in pollen were destroyed, therewere some cavities in pollen grain. The pollen grain had no life􀀁force. In addition, more serious damage was shown in ultrastructure of pollen by INA and low temperature. Therefore, INA bacteria was one major factor to incine forst damage to Apricot flowers.

Key words: INA bacteria, Apricot, Pollen, Ultrastructure

CLC Number:

S 66 2. 2

Peng Weixiu;Yang Jianmin;Zhang Qin;Meng Qingrui;Li Shaohua;Sun Fuzai;and Zhao Tingchang. Effect of Ice Nucleation Active Bacteria on the Ultrastructure of Apricot VarietyPollen[J]. ACTA HORTICULTURAE SINICA, 2001, 28(5): 453-456.

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Effect of Ice Nucleation Active Bacteria on the Ultrastructure of Apricot VarietyPollen

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