Article
Plant Sciences
Wei Zhang, Ying Feng Hu, Xiao He, Wei Zhou, Jian Wen Shao
Summary: This study compared the variation in floral traits of central and peripheral populations of the distylous Primula wannanensis, finding that late-opening flowers had significantly reduced flower size and weakened sex-organ reciprocity. Despite the reduced herkogamy, seed set remained high under pollinator-excluded conditions, supporting the hypothesis of delayed autonomous selfing evolution in marginal populations of distylous species.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Bi-Xian Wu, Li-Na Ma, Nan Xia, Hao Wang, Guo-Xing Cao
Summary: This study aims to determine if monoecious plants can effectively avoid self-interference and promote the evolution of monoecy under the service of pollinators. The results show that pollinator-mediated self-interference significantly reduces selfing, providing potential dynamics for the maintenance and evolution of monoecy.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jannathan Mamut, Dai-Hong Huang, Juan Qiu, Dun-Yan Tan
Summary: This study investigated the reproductive mechanisms of Leontice incerta in a cold desert habitat. The results showed that this plant ensures self-pollination and reproductive success through behaviors such as stamen curvature and temporal flower closure.
JOURNAL OF PLANT RESEARCH
(2023)
Article
Plant Sciences
Rachel B. Spigler, Rossana Maguina
Summary: The study reveals that changes in stigma morphology and receptivity, timing of autonomous self-pollen deposition, and floral senescence interact to influence the relative benefit of autonomous selfing across floral lifespan. This has implications for the maintenance of mixed mating in S. angularis.
AMERICAN JOURNAL OF BOTANY
(2022)
Article
Ecology
Kuangyi Xu
Summary: The genetic basis of selfing rate evolution in plant populations is still unclear. This study investigates the genetic basis of selfing rate evolution using population genetic models. The results show that selfing modifiers differ from mating-unrelated loci in their phenotypic effects and the selection coefficient depends on the background selfing rate. Moreover, the evolution of selfing involving multiple modifier loci is more likely when selfing is controlled by few large-effect rather than many slight-effect modifiers.
Article
Environmental Sciences
Christoph Rosinger, Johannes Rousk, Michael Bonkowski, Janet Rethemeyer, Andrea Jaeschke
Summary: Extreme environmental conditions in the Atacama Desert make it one of the most inhospitable habitats for life on Earth. This study investigated the physiological responses of soil microorganisms to a simulated precipitation event in these extreme soils. The results revealed that microbial growth did occur following rewetting, although at much lower rates compared to other soil systems. Carbon supplementation increased bacterial growth and respiration responses, indicating a carbon-limited microbial community. The study also found evidence of an active archaeal community in the hyper-arid soils upon rewetting.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Yongquan Ren, Chengling Huang, Rui Zhang, Shouxue Zhu, Jialin Yang
Summary: The staggered arrangement and sequential dehiscence of anthers in the didynamous stamens of Brandisia hancei facilitate reproductive fitness by prolonging pollen presentation and promoting delayed self-pollination, ultimately leading to higher seed production.
PLANT SPECIES BIOLOGY
(2023)
Article
Plant Sciences
Min Chen, Xue-Yong Zhao, Ping Yue, Xin-Xin Guo, Jing-Juan Qiao, Xiang-Yun Li
Summary: The study found that Caragana microphylla plants exhibited pollen limitation, with heavy grazing significantly reducing seed production in plants that underwent open-pollination. However, there was no significant difference in seed production between plants in the control group and those in the moderate grazing group. Plants in the control group had a higher pollinator visitation frequency compared to those in the heavy grazing group.
Article
Plant Sciences
M. L. Buide, J. C. Del Valle, A. Prado-Comesana, E. Narbona
Summary: This study found that S. littorea is mainly pollinated by bees and butterflies, with pollinators showing a preference for visiting pink flowers. White flowers exhibited pollinator limitation in fruit set and higher levels of florivory. Both flower colour morphs can reproduce in the absence of pollinators through autonomous selfing, but white flowers mainly produce fruits through autogamy.
Article
Plant Sciences
Min Chen, Xue-Yong Zhao, Xiao-An Zuo, Shao-Kun Wang, Hao Qu, Yue Ping, Xu-Jun Ma, Liang-Xu Liu
Summary: Our study found that supplementing with pollen significantly increased seed set per flower, indicating pollen limitation in this species. Additionally, hand cross-pollination resulted in greater seed set in the restored habitat compared to the fragmented environment. More Apis mellifera visits were recorded in the restored habitats, potentially explaining the difference in seed production between fragmented and restored habitats.
Article
Plant Sciences
Yuan-Mi Wu, Xue-Li Shen, Ling Tong, Feng-Wei Lei, Xiao-Fei Xia, Xian-Yun Mu, Zhi-Xiang Zhang
Summary: This study revealed the reproductive characteristics of L. oblata, a critically endangered species endemic to cliffs in North China, providing insight into its endangerment and suggesting conservation strategies. L. oblata has highly pollinator-dependent self-fertilization as part of a mixed mating system. Floral features such as low-flowering synchrony, asynchronous anthers dehiscence, and high duration of stigma receptivity, improve pollination efficiency in the case of low pollinator service.
Article
Plant Sciences
Han-Wen Xiao, Yan-Bo Huang, Yu-Hang Chang, Yun Chen, Richard J. Abbott, Yu-Kun Wei, Yong-Peng Ma
Summary: The study showed that delayed autonomous selfing (DAS) in Salvia umbratica can increase fruit and seed set rates, particularly in the absence of pollinators. Immediate pollination after flower opening can also lead to high fruit and seed set rates, but with lower effectiveness if pollen load is reduced. Flower longevity in S. umbratica varies to optimize reproductive output based on the availability and effectiveness of pollinators.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Rafael F. F. del Castillo, Sonia Trujillo-Argueta
Summary: When studying dioecy and hermaphroditism, the consideration of pollen risks is crucial. Dioecy prevails in landscapes with abundant conspecific pollen donors or recipients, while hermaphroditism is more common in landscapes with low conspecific pollen or abundant heterospecific pollen.
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2022)
Article
Ecology
Kuangyi Xu
Summary: Increased self-fertilization can provide reproductive assurance and decrease fitness due to deleterious mutations when plant populations experience pollen limitation. This study used eco-evolutionary models to examine the conditions in which higher self-fertilization through plasticity and/or evolution can rescue populations from pollen limitation. The results showed that rescue is most likely to occur at an intermediate level of selfing rate increase, with plasticity being more likely than evolution. The study emphasizes the importance of plasticity in plant population rescue and provides insights for understanding the evolution of mating system plasticity in future research.
AMERICAN NATURALIST
(2023)
Article
Multidisciplinary Sciences
Qin-zheng Hou, Nasib Ur Rahman, Ahmad Ali, Yu-pei Wang, Sakhawat Shah, Ehmet Nurbiye, Wen-juan Shao, Muhammad Ilyas, Kun Sun, Rui Li, Fazal Said, Shah Fahad
Summary: This study indicates that plants living at the edge of their range boundary experience a decline in reproductive fitness when their habitat is artificially expanded, with reduced flowering duration, floral display, pollen numbers, and reproductive allocation, as well as decreased pollinator richness and activity.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Fernanda Perez, Nicolas Lavandero, Carmen Gloria Ossa, Luis Felipe Hinojosa, Paola Jara-Arancio, Mary T. Kalin Arroyo
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Microbiology
Maria Isabel Mujica, Mauricio Cisternas, Araceli Claro, Mikhaela Simunovic, Fernanda Perez
Summary: This study examined the impact of fungal identity and nutrient addition on the germination of Bipinnula fimbriata orchids, revealing that the effect of nutrients on symbiotic germination varied depending on fungal identity. Further research is needed to understand the underlying mechanisms and the variability of nutrient addition on symbiotic germination in orchids and OMF species.
Article
Plant Sciences
Maureen Murua, Anahi Espindola, Fernanda Perez
Article
Plant Sciences
Javiera Chinga, Maria Fernanda Perez, Regine Classen-Bockhoff
Summary: Changes in the timing of development within a lineage have a significant impact on floral diversification. This study compared petal development across species in the genus Schizanthus and found that transitions in pollinators were associated with lower lip diversification. Different heterochronic processes shape morphological variation and promote adaptive evolution in floral structures of this genus.
PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS
(2021)
Article
Plant Sciences
Nicolas Lavandero, Benito Rosende, Maria Fernanda Perez
Article
Plant Sciences
Nicolas Lavandero, Javiera Chinga, Raquel Pinto, Maria Fernanda Perez
Summary: A new Schizanthus species from northern Chile has been described and differentiated from other species in the region by its morphological features. The study proposes the reinstatement of Schizanthus fallax and suggests utilizing an integrative framework for a comprehensive understanding of the taxonomy and evolution of Schizanthus. The research also provides information on distribution, habitat, conservation status, and taxonomic notes, along with an updated key for the species of Schizanthus from northern Chile.
Correction
Multidisciplinary Sciences
Ale Vidal Elgueta, Nathalia Navarro, Mauricio Uribe, Kevin Robe, Frederic Gaymard, Christian Dubos, Maria Fernanda Perez, Hannetz Roschzttardtz
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Carmen Gloria Ossa, Daniela Aros-Mualin, Maria Isabel Mujica, Fernanda Perez
Summary: The parasitism of Tristerix aphyllus negatively affects the fitness of Echinopsis chiloensis, particularly impacting summer photosynthesis. While cacti with higher nitrogen concentrations to the south show improved overall fitness, there is no strong impact on cactus physiology overall. The response of E. chiloensis to T. aphyllus infection is sensitive to environmental changes and could be greatly impacted by desertification projected in the area due to climate change.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Nicolas Lavandero, Ludovica Santilli, Fernanda Perez
Summary: A new species of Calceolaria sect. Cheiloncos endemic to central Chile is described in this study, with a comparison made with morphologically similar species. The new species is only known from a specific area in central Chile and is considered Critically Endangered.
Article
Plant Sciences
Ludovica Santilli, Fernanda Perez, Claire De Schrevel, Philippe Dandois, Hector Mondaca, Nicolas Lavandero
Summary: This paper presents a new species of Nicotiana found in Chile, endemic to the coast of the Coquimbo region. Through molecular analysis, it is classified within the N. sect. Paniculatae, as a sister species to N. cordifolia from the Juan Fernandez islands. The new species is considered critically endangered due to its restricted and fragmented distribution, small population size, and the threat of urbanization and mining activities to the conservation of the area's biodiversity.
Editorial Material
Public, Environmental & Occupational Health
Fernanda Perez
PERSPECTIVES IN PUBLIC HEALTH
(2022)
Review
Biochemistry & Molecular Biology
Patricia Luna, Maria Fernanda Perez, Jairo Castellar-Lopez, Aileen Chang, Yuliet Montoya, John Bustamante, Wendy Rosales-Rada, Evelyn Mendoza-Torres
Summary: The pathogenesis of SARS-CoV-2 involves the interaction between a spike protein and the angiotensin II-converting enzyme receptor, leading to inflammatory responses and severe disease in some cases. Recent studies have shown that angiotensin-(1-7) has the potential to control COVID-19 severity due to its anti-inflammatory and other beneficial effects. Therefore, the use of convalescent plasma conjugated therapy and Ang (1-7) agonists is recommended for COVID-19 treatment. However, more clinical evidence is needed to establish the therapeutic usage of this peptide.
CURRENT PROTEIN & PEPTIDE SCIENCE
(2023)
Review
Oncology
Fernanda Perez, Margaret Nolde, Tracy E. Crane, Mehdi Kebria, Kevin Chan, Thanh Dellinger, Virginia Sun
Summary: Patients with cancer often face symptoms and declines in functional capacity after complex and invasive urologic and gynecologic cancer surgery. Remote patient monitoring using patient-generated health data is a potential approach for evaluating and promoting postoperative recovery. This integrative review provides an overview of current literature and research on remote patient monitoring in gynecologic and urologic surgical oncology.
JOURNAL OF SURGICAL ONCOLOGY
(2023)
Article
Pediatrics
Miriam Faunes Perez, Alvaro Gonzalez Morande, Maria Eugenia Perez Arriaran, Veronica Torres Tapia, Monica Avaca Bengoechea, Marta Alcaide Aracena, Patricia Avalos Odano, Soledad Urzua Baquedano, Jorge Fabres Biggs
Summary: This study aimed to describe outcomes and complications associated with the use of peripherally inserted central venous catheters in neonates and identify risk factors for major complications. The results showed that catheter use was long-lasting with a low rate of major complications, which were more common in extremely preterm infants. Infections were associated with an increased number of punctures and durations over 14 days.
Article
Microbiology
Maria Isabel Mujica, Maria Fernanda Perez, Marcin Jakalski, Florent Martos, Marc Andre Selosse
FEMS MICROBIOLOGY ECOLOGY
(2020)