巴西塞拉多保存区和退化区核桃科植物的生殖生物学研究

IF 1 4区 生物学 Q3 PLANT SCIENCES Botany Pub Date : 2023-04-19 DOI:10.1139/cjb-2022-0132
Stéphanie Queiroz Roque, L. Falcão, A. Rech, J. Silva, P. S. Oliveira, Kleiperry Freitas Ferreira, M. M. do Espírito Santo
{"title":"巴西塞拉多保存区和退化区核桃科植物的生殖生物学研究","authors":"Stéphanie Queiroz Roque, L. Falcão, A. Rech, J. Silva, P. S. Oliveira, Kleiperry Freitas Ferreira, M. M. do Espírito Santo","doi":"10.1139/cjb-2022-0132","DOIUrl":null,"url":null,"abstract":"This study aimed to characterize the reproductive system and determine the importance of pollinators for fruit production of C. brasiliense, an economically important tree, in preserved and degraded Cerrado areas in southeastern Brazil. For this purpose, we performed pollinator exclusion experiments to determine the frequency of self- and cross-pollination, and to determine fruit set. In general, fruit set was extremely low: only 2.92% and 2.71% of the flowers developed into fruits in the degraded and preserved areas, respectively. Fruit set by manual cross-pollination and natural (open) pollination were higher than self-pollination in both areas. Pollen deposition was significantly higher at night and in the preserved area, although a relatively high amount of pollen grains found in the stigmas during the day. The number of ripened and aborted seeds did not differ among areas, but fruits and seeds were heavier in the degraded area than in the preserved area. The abortion level was very high (64.5%), which may be related to low pollen quality due to selfing. Our study presents evidence that Cerrado degradation affects the reproductive biology of C. brasiliense, but whether such effect is a consequence of pollinator decline in degraded areas remains to be determined.","PeriodicalId":9092,"journal":{"name":"Botany","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"REPRODUCTIVE BIOLOGY OF CARYOCAR BRASILIENSE (CARYOCARACEAE) IN PRESERVED AND DEGRADED CERRADO AREAS IN BRAZIL\",\"authors\":\"Stéphanie Queiroz Roque, L. Falcão, A. Rech, J. Silva, P. S. Oliveira, Kleiperry Freitas Ferreira, M. M. do Espírito Santo\",\"doi\":\"10.1139/cjb-2022-0132\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study aimed to characterize the reproductive system and determine the importance of pollinators for fruit production of C. brasiliense, an economically important tree, in preserved and degraded Cerrado areas in southeastern Brazil. For this purpose, we performed pollinator exclusion experiments to determine the frequency of self- and cross-pollination, and to determine fruit set. In general, fruit set was extremely low: only 2.92% and 2.71% of the flowers developed into fruits in the degraded and preserved areas, respectively. Fruit set by manual cross-pollination and natural (open) pollination were higher than self-pollination in both areas. Pollen deposition was significantly higher at night and in the preserved area, although a relatively high amount of pollen grains found in the stigmas during the day. The number of ripened and aborted seeds did not differ among areas, but fruits and seeds were heavier in the degraded area than in the preserved area. The abortion level was very high (64.5%), which may be related to low pollen quality due to selfing. Our study presents evidence that Cerrado degradation affects the reproductive biology of C. brasiliense, but whether such effect is a consequence of pollinator decline in degraded areas remains to be determined.\",\"PeriodicalId\":9092,\"journal\":{\"name\":\"Botany\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2023-04-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Botany\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1139/cjb-2022-0132\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Botany","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1139/cjb-2022-0132","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

本研究旨在描述巴西东南部塞拉多保护区和退化区的繁殖系统,并确定传粉昆虫对巴西棕榈树果实生产的重要性。巴西棕榈树是一种经济上重要的树木。为此,我们进行了传粉昆虫排除实验,以确定自花授粉和异花授粉的频率,并确定坐果。总的来说,坐果率极低:在退化和保存区,分别只有2.92%和2.71%的花发育成果实。人工异花授粉和自然(开放)授粉的结实率均高于自花授粉。花粉沉积在夜间和保存区明显较高,尽管白天在柱头中发现了相对较多的花粉粒。不同地区成熟和败育的种子数量没有差异,但退化地区的果实和种子比保存地区重。败育率很高(64.5%),这可能与自拍导致花粉质量低下有关。我们的研究表明,塞拉多的退化影响了巴西锥虫的繁殖生物学,但这种影响是否是退化地区传粉昆虫减少的结果还有待确定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
REPRODUCTIVE BIOLOGY OF CARYOCAR BRASILIENSE (CARYOCARACEAE) IN PRESERVED AND DEGRADED CERRADO AREAS IN BRAZIL
This study aimed to characterize the reproductive system and determine the importance of pollinators for fruit production of C. brasiliense, an economically important tree, in preserved and degraded Cerrado areas in southeastern Brazil. For this purpose, we performed pollinator exclusion experiments to determine the frequency of self- and cross-pollination, and to determine fruit set. In general, fruit set was extremely low: only 2.92% and 2.71% of the flowers developed into fruits in the degraded and preserved areas, respectively. Fruit set by manual cross-pollination and natural (open) pollination were higher than self-pollination in both areas. Pollen deposition was significantly higher at night and in the preserved area, although a relatively high amount of pollen grains found in the stigmas during the day. The number of ripened and aborted seeds did not differ among areas, but fruits and seeds were heavier in the degraded area than in the preserved area. The abortion level was very high (64.5%), which may be related to low pollen quality due to selfing. Our study presents evidence that Cerrado degradation affects the reproductive biology of C. brasiliense, but whether such effect is a consequence of pollinator decline in degraded areas remains to be determined.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Botany
Botany 生物-植物科学
CiteScore
2.20
自引率
9.10%
发文量
48
期刊介绍: Botany features comprehensive research articles and notes in all segments of plant sciences, including cell and molecular biology, ecology, mycology and plant-microbe interactions, phycology, physiology and biochemistry, structure and development, genetics, systematics, and phytogeography. It also publishes methods, commentary, and review articles on topics of current interest, contributed by internationally recognized scientists.
期刊最新文献
Four new species of Albomagister (Agaricales) from eastern North America The Meadoway: native meadow creation in underutilized transmission line corridors Do nurse plants and cattle exclusion help restore Parlatore’s Podocarp forest? Observations on the curvature of Physcomitrium patens (Hedw.) Mitt. and Funaria hygrometrica (Hedw.) caulonemal filaments 基于BP神经网络算法的延胡索农药减施增效技术研究
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1