西南林业大学西南山地森林资源保育与利用教育部重点实验室/西南林业大学西南地区生物多样性保育国家林业局重点实验室，云南昆明 650224
研究方向为林木遗传育种，E-mail： 15912102303@163.com
许玉兰，研究方向为林木遗传育种，E-mail： xvyulan@163.com
云南省万人计划青年拔尖人才项目资助（YNWR-QNBJ-2019-075）；云南省研究生导师团队建设项目（2022-97）；西南林业大学校科研基金项目 （01108-18200133）
- YANG Zhenxin
YANG Zhenxin
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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ZHU Yajing
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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LU Zhuangyue
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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CAI Nianhui
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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WANG Dexin
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
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Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Southwest Forestry University， Ministry of Education/Key Laboratory of Biodiversity Conservation in Southwest China， State Forestry Administration， Southwest Forestry University， Kunming 650224， Yunnan
Foundation projects： Ten-Thousand Talent Plants for Young Top-notch Talents of Yunnan Province （YNWR-QNBJ-2019-075）；Postgraduate Mentoring Team Building Project of Yunnan Province（2022-97）；Southwest Forestry University Research Fund （01108-18200133）
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以二倍体和三倍体的紫果西番莲满天星（Passiflora edulis）为研究对象，对其生长、叶片形态特征、叶绿素含量以及光合参数进行测定及分析。结果表明：（1）紫果西番莲满天星二倍体与三倍体相比，三倍体植株呈现矮壮、叶柄更短、叶片更窄和叶片之间的距离变短的现象。（2）三倍体的叶绿素a、叶绿素b、叶绿素总含量较二倍体更多，类胡萝卜素含量相差不大。（3）光合作用日进程中，两个倍性均有光合作用“午休”现象，而三倍体全天的净光合速率（Pn）、蒸腾速率（Tr）、气孔导度（Gs）和胞间CO2浓度（Ci）均高于二倍体，较二倍体分别提高了19.5%、6.9%、4.5%和3.9%。（4）二倍体和三倍体满天星的月光合作用变化相似，均在8月份达到最高值，12月份下降到最低点，均为单峰曲线。三倍体满天星的Pn、Tr、Gs均优于二倍体。（5）两个倍性植株各指标之间均有相关性，表明各性状之间相互影响、相互促进，使得植株正常生长；且气孔的大小、开闭都显著影响着植物叶片的Pn和Tr。以上结果表明，三倍体满天星随着基因剂量的增加，增强了三倍体满天星的光合作用能力及对光能的利用能力，提高了三倍体满天星的叶绿素含量的积累。
The growth， leaf morphology， chlorophyll synthesis and photosynthetic parameters in diploid and triploid Passiflora edulis Mantianxing were measured. The results showed that： （1） Compared with triploid plants， the triploid plants showed shorter stalk and petiole， narrower leaves and shorter distance between than that of diploid leaves， and the content of carotenoid was no significant difference. （2） The total content of chlorophyll， chlorophyll a and chlorophyll b synthesized by triploid leaves was higher in triploid. （3） During the diurnal process of photosynthesis， both diploid and triploid had a lunch break and the net photosynthetic rate （Pn）， transpiration rate （Tr）， stomatal conductance （Gs） and intercellular CO2 concentration （Ci） of triploid plant were higher than those of diploid plant， which were increased by 9.5%， 6.9%， 4.5% and 3.9%， respectively. （4） The variation trend of monthly photosynthesis in diploid and triploid was similar， both reaching the highest value in August and falling to the lowest value in December， both of which are single-peak curves. The Pn， Tr and Gs of triploid Mantianxing are superior to diploid. （5） There was correlation between the indexes of the two ploidy plants， which indicated that the traits influenced and promoted each other to make the plant grow normally. The size， opening and closing of stomata significantly affected the Pn and Tr of plant leaves. These results showed that the photosynthetic capacity and light energy utilization capacity of triploid Mantianxing were enhanced with the increase of gene dose， and the accumulation of chlorophyll synthesis content of triploid Mantianxing was increased.
引用本文
杨振欣,朱雅静,陆庄跃,等.不同倍性紫果西番莲满天星的形态特征和光合特性比较研究[J].植物遗传资源学报,2023,24(6):1659-1668.
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- 收稿日期:2023-04-04
- 最后修改日期:2023-04-28
- 在线发布日期: 2023-10-31
- 出版日期: 2023-10-31
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