1
|
Ma X, Chang X, Liu G, Han Q, Ke H, Ren B, Wang Y. Structural and functional analysis of aquaporins in Bombus terrestris. Int J Biol Macromol 2024; 275:133692. [PMID: 38972657 DOI: 10.1016/j.ijbiomac.2024.133692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/18/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Bombus terrestris are efficient pollinators in forestry and agriculture, with higher cold tolerance than other bees. Yet, their cold tolerance mechanism remains unclear. Aquaporins (AQPs) function as cell membrane proteins facilitating rapid water flow, aiding in osmoregulation. Recent studies highlight the importance of insect AQPs in dehydration and cold stress. Comparative transcriptome analysis of B. terrestris under cold stress revealed up-regulation of four AQPs, indicating their potential role in cold tolerance. Seven AQPs-Eglp1, Eglp2, Eglp3, DRIP, PRIP, Bib, and AQP12L-have been identified in B. terrestris. These are widely expressed in various tissues, particularly in the alimentary canal and Malpighian tubules. Functional analysis of BterAQPs in the Xenopus laevis oocytes expressing system showed distinct water and glycerol selectivity, with BterDrip exhibiting the highest water permeability. Molecular modeling of BterDrip revealed six transmembrane domains, two NPA motifs, and an ar/R constriction region (Phe131, His256, Ser265, and Arg271), likely contributing to its water selectivity. Silencing BterDRIP accelerated mortality in B. terrestris under cold stress, highlighting the crucial role of BterDRIP in their cold tolerance and providing a molecular mechanism for their cold adaptation.
Collapse
Affiliation(s)
- Xiaomei Ma
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China
| | - Xinya Chang
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China
| | - Geyuan Liu
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China
| | - Qing Han
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Haoqin Ke
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China
| | - Bingzhong Ren
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China
| | - Yinliang Wang
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China; Key Laboratory of Vegetation Ecology, MOE, Northeast Normal University, Changchun, Jilin 116000, People's Republic of China.
| |
Collapse
|
2
|
Han T, Kim SH, Yoon HJ, Park IG, Park H. Genetic variations of DNA barcoding region of bumble bees (Hymenoptera: Apidae) from South Korea. Mitochondrial DNA A DNA Mapp Seq Anal 2018; 30:30-42. [PMID: 29557238 DOI: 10.1080/24701394.2018.1450396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We reassessed species diversity and genetic structure in Korean bumble bees using DNA barcode analyses of 484 cytochrome c oxidase subunit I (COI) sequences from 24 morphospecies. Based on COI, all of the Korean species formed distinct clades in the phylogenetic trees, except for Bombus (Megabombus) koreanus in the maximum likelihood tree. Five species exhibited low interspecific genetic distances (range: 1.2-2.7%), indicating that they are recently diverged species. COI data could not be used to identify bumble bees at the subspecies level. For the dominant species, most local populations in Korea were panmictic and were more closely related to continental populations than to allopatric populations. Furthermore, sympatric haplotypes within Korea could be distinguished. We detected B. (Megabombus) diversus in South Korea for the first time. Our results demonstrate that DNA barcoding is a useful technique for species recognition and for allopatric and sympatric haplotype detection in bumble bees.
Collapse
Affiliation(s)
- Taeman Han
- a Applied Entomology Division, Department of Agricultural Biology , National Institute of Agricultural Science, RDA , Wanju-gun , Jeollabuk-do , Republic of Korea
| | - Seung-Hyun Kim
- a Applied Entomology Division, Department of Agricultural Biology , National Institute of Agricultural Science, RDA , Wanju-gun , Jeollabuk-do , Republic of Korea
| | - Hyung Joo Yoon
- a Applied Entomology Division, Department of Agricultural Biology , National Institute of Agricultural Science, RDA , Wanju-gun , Jeollabuk-do , Republic of Korea
| | - In Gyun Park
- a Applied Entomology Division, Department of Agricultural Biology , National Institute of Agricultural Science, RDA , Wanju-gun , Jeollabuk-do , Republic of Korea
| | - Haechul Park
- a Applied Entomology Division, Department of Agricultural Biology , National Institute of Agricultural Science, RDA , Wanju-gun , Jeollabuk-do , Republic of Korea
| |
Collapse
|
3
|
Diversity of wild bees supports pollination services in an urbanized landscape. Oecologia 2015; 179:811-21. [PMID: 26187241 DOI: 10.1007/s00442-015-3389-0] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 06/30/2015] [Indexed: 10/23/2022]
Abstract
Plantings in residential neighborhoods can support wild pollinators. However, it is unknown how effectively wild pollinators maintain pollination services in small, urban gardens with diverse floral resources. We used a 'mobile garden' experimental design, whereby potted plants of cucumber, eggplant, and purple coneflower were brought to 30 residential yards in Chicago, IL, USA, to enable direct assessment of pollination services provided by wild pollinator communities. We measured fruit and seed set and investigated the effect of within-yard characteristics and adjacent floral resources on plant pollination. Increased pollinator visitation and taxonomic richness generally led to increases in fruit and seed set for all focal plants. Furthermore, fruit and seed set were correlated across the three species, suggesting that pollination services vary across the landscape in ways that are consistent among different plant species. Plant species varied in terms of which pollinator groups provided the most visits and benefit for pollination. Cucumber pollination was linked to visitation by small sweat bees (Lasioglossum spp.), whereas eggplant pollination was linked to visits by bumble bees. Purple coneflower was visited by the most diverse group of pollinators and, perhaps due to this phenomenon, was more effectively pollinated in florally-rich gardens. Our results demonstrate how a diversity of wild bees supports pollination of multiple plant species, highlighting the importance of pollinator conservation within cities. Non-crop resources should continue to be planted in urban gardens, as these resources have a neutral and potentially positive effect on crop pollination.
Collapse
|
4
|
Zhang H, Huang J, Williams PH, Vaissière BE, Zhou Z, Gai Q, Dong J, An J. Managed bumblebees outperform honeybees in increasing peach fruit set in China: different limiting processes with different pollinators. PLoS One 2015; 10:e0121143. [PMID: 25799170 PMCID: PMC4370422 DOI: 10.1371/journal.pone.0121143] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 02/12/2015] [Indexed: 11/19/2022] Open
Abstract
Peach Prunus persica (L.) Batsch is self-compatible and largely self-fertile, but under greenhouse conditions pollinators must be introduced to achieve good fruit set and quality. Because little work has been done to assess the effectiveness of different pollinators on peach trees under greenhouse conditions, we studied ‘Okubo’ peach in greenhouse tunnels near Beijing between 2012 and 2014. We measured pollen deposition, pollen-tube growth rates, ovary development, and initial fruit set after the flowers were visited by either of two managed pollinators: bumblebees, Bombus patagiatus Nylander, and honeybees, Apis mellifera L. The results show that B. patagiatus is more effective than A. mellifera as a pollinator of peach in greenhouses because of differences in two processes. First, B. patagiatus deposits more pollen grains on peach stigmas than A. mellifera, both during a single visit and during a whole day of open pollination. Second, there are differences in the fertilization performance of the pollen deposited. Half of the flowers visited by B. patagiatus are fertilized 9–11 days after bee visits, while for flowers visited by A. mellifera, half are fertilized 13–15 days after bee visits. Consequently, fruit development is also accelerated by bumblebees, showing that the different pollinators have not only different pollination efficiency, but also influence the subsequent time course of fertilization and fruit set. Flowers visited by B. patagiatus show faster ovary growth and ultimately these flowers produce more fruit. Our work shows that pollinators may influence fruit production beyond the amount of pollen delivered. We show that managed indigenous bumblebees significantly outperform introduced honeybees in increasing peach initial fruit set under greenhouse conditions.
Collapse
Affiliation(s)
- Hong Zhang
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiaxing Huang
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Paul H. Williams
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Department of Life Sciences, The Natural History Museum, London, United Kingdom
| | - Bernard E. Vaissière
- INRA, Laboratoire Pollinisation & Ecologie des Abeilles, UR406 Abeilles & Environnement, Avignon, France
| | - Zhiyong Zhou
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qinbao Gai
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jie Dong
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiandong An
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- * E-mail:
| |
Collapse
|