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二氧化碳富集对新几内亚凤仙生长发育的影响。

Effects of CO(2) enrichment on growth and development of Impatiens hawkeri.

作者信息

Zhang Fan-Fan, Wang Yan-Li, Huang Zhi-Zhe, Zhu Xiao-Chen, Zhang Feng-Jiao, Chen Fa-Di, Fang Wei-Min, Teng Nian-Jun

机构信息

College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China.

出版信息

ScientificWorldJournal. 2012;2012:601263. doi: 10.1100/2012/601263. Epub 2012 Mar 12.

DOI:10.1100/2012/601263
PMID:22536147
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3317631/
Abstract

The effects of CO(2) enrichment on growth and development of Impatiens hawkeri, an important greenhouse flower, were investigated for the purpose of providing scientific basis for CO(2) enrichment to this species in greenhouse. The plants were grown in CO(2)-controlled growth chambers with 380 (the control) and 760 (CO(2) enrichment) μmol · mol(-1), respectively. The changes in morphology, physiology, biochemistry, and leaf ultrastructure of Impatiens were examined. Results showed that CO(2) enrichment increased flower number and relative leaf area compared with the control. In addition, CO(2) enrichment significantly enhanced photosynthetic rate, contents of soluble sugars and starch, activities of peroxidase (POD), superoxide dismutase (SOD), and ascorbate peroxidase (APX), but reduced chlorophyll content and malondialdehyde (MDA) content. Furthermore, significant changes in chloroplast ultrastructure were observed at CO(2) enrichment: an increased number of starch grains with an expanded size, and an increased ratio of stroma thylakoid to grana thylakoid. These results suggest that CO(2) enrichment had positive effects on Impatiens, that is, it can improve the visual value, promote growth and development, and enhance antioxidant capacity.

摘要

为给温室中该物种增施二氧化碳提供科学依据，研究了增施二氧化碳对重要温室花卉新几内亚凤仙生长发育的影响。植株分别种植于二氧化碳浓度控制在380（对照）和760（增施二氧化碳）μmol·mol⁻¹的生长室中。检测了新几内亚凤仙形态、生理、生化及叶片超微结构的变化。结果表明，与对照相比，增施二氧化碳增加了花朵数量和相对叶面积。此外，增施二氧化碳显著提高了光合速率、可溶性糖和淀粉含量、过氧化物酶（POD）、超氧化物歧化酶（SOD）和抗坏血酸过氧化物酶（APX）的活性，但降低了叶绿素含量和丙二醛（MDA）含量。此外，增施二氧化碳时叶绿体超微结构有显著变化：淀粉粒数量增加且尺寸增大，基质类囊体与基粒类囊体的比例增加。这些结果表明，增施二氧化碳对新几内亚凤仙有积极影响，即能提高观赏价值、促进生长发育并增强抗氧化能力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/ae470ae72bb1/TSWJ2012-601263.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/5596e064d750/TSWJ2012-601263.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/1c83b3671252/TSWJ2012-601263.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/3a6161ca09eb/TSWJ2012-601263.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/0d0fc787f364/TSWJ2012-601263.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/ae470ae72bb1/TSWJ2012-601263.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/5596e064d750/TSWJ2012-601263.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/1c83b3671252/TSWJ2012-601263.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/3a6161ca09eb/TSWJ2012-601263.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/0d0fc787f364/TSWJ2012-601263.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3317631/ae470ae72bb1/TSWJ2012-601263.005.jpg

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