Foods
·
2025
·Vol. 14
·期 1
·94
·
IF 5.1
Yaxun Qiao,Wenjie Yu,Keju Li,Jingze Cao,Jie Zhu,Qiuning Wang,Jiaqi Zhao,Yunping Wang,Liping Luo,Jinwang Li,Fangjian Ning
The ‘Jingbaili’ pear is a national geographical indication product of China, featuring an oblate shape and being rich in nutrients. But the quality of the ‘Jingbaili’ pear is unstable. Xenia can cause changes in the quality of pears, but the effect of xenia on the ‘Jingbaili’ pear is unknown, and its mechanism is still unclear. In order to clarify the effect of pollination on the fruit quality of the ’Jingbaili’ pear, this research pollinated ‘Jingbaili’ pear flowers with the pollen of ‘Yali’ (JY), ‘Suli’ (JS) and ‘Huangli’ (JH). The results indicated that the mass, transverse diameter and longitudinal diameter of the JY group were significantly higher than the JS group and JH group. On the other hand, the pears of the JY group and JS group obtained higher soluble sugar content. The aroma content of characteristic compounds was higher in the JY group than in the JS group and JH group. Multivariate analysis revealed significant differences in the nonvolatile metabolites among the JY group, JS group and JH group, potentially explaining the variations in the nutritional and flavor compounds of the pears. Furthermore, this research investigated metabolic changes in the pears during development and ripening under the three types of pollination. The results showed that amino acid metabolism differed among these pollination types during development. These differences may be the cause of the observed variations in the pears. This research clarified the effect of xenia on the nutritional components and flavor substances in the ‘Jingbaili’ pear and could provide data support for improving the quality of the ‘Jingbaili’ pear.
研究领域:
园艺学
·
植物生理学
·
食品科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF PLANT RESEARCH
·
2023
·Vol. 136
·期 5
·631-641
·
IF 2.8
Wang Hongfei,Wang Xiaofeng,Li Yongjia,Gao Rui,Narsing Rao Manik Prabhu,Song Jieqiong,Li Qiuli
Environmental conditions during seed development and maturation can affect seed traits and germination behavior, yet systematic research on the effects of seed maturation time on seed traits, germination behavior and seedling emergence of cleistogamy plants is lacking. Here, we determined the difference in phenotypic characteristics of CH and CL (namely CL1, CL2 and CL3 based on maturation time, respectively) fruits/seeds that were collected from Viola prionantha Bunge, a cleistogamous perennial plant, and evaluated the effects of various environmental factors on seed germination and seedling emergence. The fruit mass, width, seed number per fruit and mean seed mass of CL1 and CL3 were greater than that of CH and CL2, while seed setting of CH was lower than that of CL1, CL2 and CL3. Germination of CH, CL1, CL2, and CL3 seeds was < 10% in the dark at 15/5 and 20/10 ℃, whereas germination (0%–99.2%) of CH, CL1, CL2, and CL3 seeds changed significantly under light conditions. In contrast, more than 71% (from 71.7 to 94.2%) germination of both CH, CL1, CL2 and CL3 seeds occurred under both light/dark conditions and continuous darkness at 30/20 ℃. Germination of CH, CL1, CL2 and CL3 seeds was sensitive to osmotic potential, but CL1 seeds were more resistant to osmotic stress, compared with CH, CL2 and CL3. Seedling emergence of CH seeds was more than 67% (from 67.8 to 73.3%) at a burial depth of 0 cm–2 cm, while all types of CL seeds were below 15% at a burial depth of 2 cm. Information gathered from this study indicates that CH and CL seeds of V. prionantha were different in fruit size, seed mass, thermoperiod and photoperiod sensitivity, osmotic potential tolerance and seedling emergence, especially, maturation time significantly affect phenotypic characteristics and germination behavior of CL seeds matured at different periods. These results indicate that V. prionantha adapts to unpredictable environmental conditions by developing a variety of adaptation strategies, and ensures the survival and reproduction of the populations.
研究领域:
植物学
·
生态学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL ECOLOGY
·
2015
·Vol. 41
·期 11
·1028-1036
·
IF 2.747
Liu Fanglin,Gao Jie,Di Nayan,Adler Lynn S.
Floral nectar often contains chemicals that are deterrent to pollinators, presenting potential challenges to outcrossing plant species. Plants may be able to co-opt pollinator chemical signals to mitigate the negative effects of nectar deterrent compounds on pollination services. We found that buckwheat ( Fagopyrum esculentum ) and Mexican sunflower ( Tithonia diversifolia ) produce nectar with abundant phenolics, including three components of the Apis honeybee queen mandibular pheromone (QMP). In addition, these nectars contain a non-pheromonal phenolic, chlorogenic acid (CA), which was toxic to honeybees, and T. diversifolia nectar also contained isochlorogenic acid (IA). Fresh nectar or solutions containing nectar phenolics reduced Apis individual feeding compared to sucrose solutions. However, freely foraging bees preferred solutions with QMP components to control solutions, and QMP components over-rode or reversed avoidance of CA and IA. Furthermore, prior exposure to the presence or just the odor of QMP components removed the deterrent effects of CA and IA. By mimicking the honey bee pheromone blend, nectar may maintain pollinator attraction in spite of deterrent nectar compounds.
研究领域:
植物学
·
昆虫学
·
生态学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）