Results 31 to 40 of about 8,610 (146)
CRABS CLAW‐independent floral nectary development in Penstemon barbatus
American Journal of Botany, Volume 112, Issue 6, June 2025.Abstract Premise Plants secrete carbohydrate‐rich nectar from specialized floral nectary glands to attract pollinators. Arabidopsis and Petunia (rosid and asterid core eudicots, respectively) share genetic control of nectary development requiring activation of CRABS CLAW by euAGAMOUS and PLENA.
Amanda M. Katzer +3 more
wiley +1 more source
The developmental basis of floral nectary diversity and evolution
New Phytologist, Volume 246, Issue 6, Page 2462-2477, June 2025.Summary Nectar is a central bridge between angiosperms and animal mutualists. It is produced by specialized structures termed nectaries, which can be found on different plant organs. Consumption of floral nectar by pollinators and the subsequent transfer of pollen contribute to the reproductive success of both angiosperms and their pollinators.
Irene T. Liao +3 more
wiley +1 more source
American Journal of Botany, Volume 112, Issue 4, April 2025.Abstract Premise Uncarina contains 14 species of woody plants endemic to Madagascar. Its occurrence across dryland biomes on the island make it an interesting system to study the diversification of the flora. Methods Using samples of all species and 512 nuclear loci, we reconstructed phylogenetic trees to examine species relationships and assess their ...
Jeffrey P. Rose +3 more
wiley +1 more source
New Phytologist, Volume 245, Issue 1, Page 215-231, January 2025.Summary Here, we investigated the molecular genetic basis of mite domatia, structures on the underside of leaves that house mutualistic mites, and intraspecific variation in domatia size in Vitis riparia (riverbank grape). Domatia and leaf traits were measured, and the transcriptomes of mite domatia from two genotypes of V.
Eleanore Jeanne Ritter +3 more
wiley +1 more source
Developmental constraint underlies the replicated evolution of grass awns
New Phytologist, Volume 245, Issue 2, Page 835-848, January 2025.Summary Replicated trait evolution can provide insights into the mechanisms underlying the evolution of biodiversity. One example of replicated evolution is the awn, an organ elaboration in grass inflorescences. Awns are likely homologous to leaf blades.
Erin Patterson +6 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2023 目的本研究旨在比较成纤维细胞来源外泌体与间充质干细胞来源外泌体对小鼠急性皮肤创面的修复作用。方法体外分离培养原代人真皮成纤维细胞（hDF）并鉴定。用超速离心法提取人真皮成纤维细胞来源外泌体（hDF-EXO）、人骨髓间充质干细胞来源外泌体（hMSC-EXO）并鉴定；两种外泌体与hDF共培养24 h后，CCK8细胞增殖实验和划痕实验检测细胞增殖和迁移活性；采用8周龄雌性C57BL/6小鼠构建急性全层皮肤切除模型，在伤口上分别局部涂敷PBS（对照组）、hDF-EXO、hMSC-EXO进行治疗。术后第0、2、4、
李锐阳 +3 more
doaj
American Journal of Botany, Volume 111, Issue 11, November 2024.Abstract Premise There are advantages to flowering early in the spring, including greater pollinator fidelity and longer fruit maturation time. But plant phenology has advanced in recent years, making many plants vulnerable to freezing damage from late frosts.
Danielle A. Lake Diver +1 more
wiley +1 more source
外泌体环状RNA诱导HK-2细胞凋亡在感染性休克AKI中的研究
Zhongguo shiyan zhenduanxue目的 探究外泌体环状RNA诱导HK-2细胞凋亡在感染性休克相关性急性肾损伤的作用机制。方法 分为感染性休克相关性急性肾损伤患者组和健康人对照组，采集血标本。检测外泌体标记蛋白，鉴定出两组外泌体，对外泌体环状RNA进行实时PCR分析。对两组的HK-2细胞进行凋亡检测。结果 10例感染性休克AKI入院患者，10例健康人对照。鉴定表面外泌体标记蛋白包括HSP70和TSG101。两组均鉴定出外泌体。与对照组相比，感染性休克AKI组circ-Ttc3 ...
李秀君, 李岩, 张春媚, 杨海玲
doaj +2 more sources
Zhongshan Daxue xuebao. Yixue kexue ban, 2022 目的探究环状RNA hsa_circ_0002316（circOMA1）是否参与泌乳素瘤耐药调控及其作用机制是什么。方法通过RT-qPCR检测临床泌乳素瘤标本中circOMA1表达情况（5例敏感泌乳素瘤标本和12例耐药泌乳素瘤标本）。通过慢病毒载体构建稳定表达外源性circOMA1 MMQ细胞系模型进行体外实验，分为MMQ NC组及MMQ OMA1组。通过构建裸鼠皮下肿瘤模型进行体内实验，分为MMQ NC+卡麦角林（CAB）组、MMQ NC+溴隐亭（BRC）组、MMQ OMA1+CAB组、MMQ ...
张译尹 +5 more
doaj
Applications in Plant Sciences, Volume 12, Issue 3, May-June 2024.Abstract Premise Conservation policies typically focus on biodiversity hotspots. An alternative approach involves analyzing the evolutionary history of lineages in geographic areas along with their threat levels to guide conservation efforts. Mountains exhibit high levels of plant species richness and micro‐endemism, and biogeographic studies commonly ...
Raquel C. Pizzardo +7 more
wiley +1 more source