Lyantria dispar larvae were fed with the leaves of Populus deltoids seedlings exposed to methyl jasmonate （MeJA） for 24 h. The growth and development of the larvae were investigated, and phenolics contents in treate...Lyantria dispar larvae were fed with the leaves of Populus deltoids seedlings exposed to methyl jasmonate （MeJA） for 24 h. The growth and development of the larvae were investigated, and phenolics contents in treated leaves including pyrocatechol, caffeic acid, coumarin, fernlic acid and benzoic acid were also surveyed by high-pressure liquid chromatography （HPLC）. Results indicated that approximate digestibility, efficiency of conversion of ingested food, efficiency of conversion of digested food, and weight of the larvae were inhibited obviously, especially from the sixth day, which may result from the increase of total phenolics contents in treated leaves. This result provides strong supports for MeJA acting as the airborne signal molecule between woody plants.展开更多
The wild Lepista sordida is a kind of precious and rare edible fungus.An excellent strain of it by artificial domestication was obtained,which was high-yield and high in iron content.In this study,high-throughput comp...The wild Lepista sordida is a kind of precious and rare edible fungus.An excellent strain of it by artificial domestication was obtained,which was high-yield and high in iron content.In this study,high-throughput comparative proteomics was used to reveal the regulatory mechanism of its primordium differentiation in the early fruiting body formation.The mycelium before the primordium differentiation mainly expressed high levels of mitochondrial functional proteins and carbon dioxide concentration regulatory proteins.In young mushrooms,the highly expressed proteins were mainly involved in cell component generation,cell proliferation,nitrogen compound metabolism,nucleotide metabolism,glutathione metabolism,and purine metabolism.The differential regulation patterns of pileus and stipe growth to maturity were also revealed.The highly expressed proteins related to transcription,RNA splicing,the production of various organelles,DNA conformational change,nucleosome organization,protein processing,maturation and transport,and cell detoxification regulated the pileus development and maturity.The proteins related to carbohydrate and energy metabolism,large amounts of obsolete cytoplasmic parts,nutrient deprivation,and external stimuli regulated the stipe development and maturity.Multiple CAZymes regulated nutrient absorption,morphogenesis,spore production,stress response,and other life activities at different growth and development stages.展开更多
基金This research was supported by National Natural Science Foundation of China (No.30170764)
文摘Lyantria dispar larvae were fed with the leaves of Populus deltoids seedlings exposed to methyl jasmonate （MeJA） for 24 h. The growth and development of the larvae were investigated, and phenolics contents in treated leaves including pyrocatechol, caffeic acid, coumarin, fernlic acid and benzoic acid were also surveyed by high-pressure liquid chromatography （HPLC）. Results indicated that approximate digestibility, efficiency of conversion of ingested food, efficiency of conversion of digested food, and weight of the larvae were inhibited obviously, especially from the sixth day, which may result from the increase of total phenolics contents in treated leaves. This result provides strong supports for MeJA acting as the airborne signal molecule between woody plants.
基金funded by the Shandong Edible Fungus Agricultural Technology System(SDAIT-07-02)the National Natural Science Foundation of China(Grant No.32000041 and 32272789)+2 种基金the Shandong Provincial Natural Science Foundation,China(ZR2020QC005)the Qingdao Agricultural University Scientific Research Foundation(6631120076)horizontal project:Breeding and property protection of new varieties of factory produced Hypsizygus marmoreus(20183702012614).
文摘The wild Lepista sordida is a kind of precious and rare edible fungus.An excellent strain of it by artificial domestication was obtained,which was high-yield and high in iron content.In this study,high-throughput comparative proteomics was used to reveal the regulatory mechanism of its primordium differentiation in the early fruiting body formation.The mycelium before the primordium differentiation mainly expressed high levels of mitochondrial functional proteins and carbon dioxide concentration regulatory proteins.In young mushrooms,the highly expressed proteins were mainly involved in cell component generation,cell proliferation,nitrogen compound metabolism,nucleotide metabolism,glutathione metabolism,and purine metabolism.The differential regulation patterns of pileus and stipe growth to maturity were also revealed.The highly expressed proteins related to transcription,RNA splicing,the production of various organelles,DNA conformational change,nucleosome organization,protein processing,maturation and transport,and cell detoxification regulated the pileus development and maturity.The proteins related to carbohydrate and energy metabolism,large amounts of obsolete cytoplasmic parts,nutrient deprivation,and external stimuli regulated the stipe development and maturity.Multiple CAZymes regulated nutrient absorption,morphogenesis,spore production,stress response,and other life activities at different growth and development stages.
文摘目的探讨不同病因矮小症患儿血清生长激素释放肽(Ghrelin)、胰岛素样生长因子-1(insulinlike growth factor-1,IGF-1)水平变化及其临床意义。方法选取2016年1月至2022年1月南通大学附属医院如皋分院收治的212例矮小症患儿,根据不同病因分为生长激素缺乏症组(n=60)、特发性矮小症组(n=46)、Turner综合征组(n=38)、先天性甲状腺功能减退症组(n=32)和宫内发育迟缓组(n=36),另选取同期于本院行体检证实身高同性别、同年龄标准范围内的106例健康儿童作为对照组。比较不同病因矮小症患儿与对照组的人口学特征和骨龄年龄差(bone age difference,BAD)、身高标准差分值(heightstandard deviation score,Ht SDS)、年生长速率(growth velocity,GV)和生长激素(growth hormone,GH)峰值等生长发育指标及青春前期和青春期的血清Ghrelin、IGF-1水平。采用受试者操作特征(receiveroperating characteristic,ROC)曲线分析血清Ghrelin、IGF-1水平对特发性矮小症的鉴别诊断价值。统计学方法采用单因素方差分析、LSD-t检验及χ^(2)检验。结果特发性矮小症组青春期患儿比例为65.2%,明显高于其他4组(P值均<0.05),其中青春期患儿比例从高至低依次为宫内发育迟缓组(41.7%)、先天性甲状腺功能减退症组(40.6%)、生长激素缺乏症组(35.0%)和Turner综合征组(31.6%);特发性矮小症组BAD为(1.4±0.3)岁,明显高于其他4组(P值均<0.05),其中BAD值从高至低依次为生长激素缺乏症组[(1.2±0.2)岁]、先天性甲状腺功能减退症组[(1.1±0.2)岁]、Turner综合征组[(0.7±0.1)岁]和宫内发育迟缓组[(0.3±0.1)岁]。特发性矮小症组GV值为[(3.7±0.8)cm/年],明显高于其他4组(P值均<0.05),其中GV值从高至低依次为生长激素缺乏症组[(2.2±0.7)cm/年]、宫内发育迟缓组[(2.1±0.6)cm/年]、先天性甲状腺功能减退症组[(1.7±0.5)cm/年]和Turner综合征组[(1.2±0.4)cm/年]。生长激素缺乏症组GH峰值为[(6.4±0.3)μg/L],明显低于其他4组(P值均<0.05),其中GH峰值从低至高依次为宫内发育迟缓组[(13.4±3.2)μg/L]、Turner综合征组[(14.2±2.1)μg/L]、特发性矮小症组[(14.7±2.5)μg/L]和先天性甲状腺功能减退症组[(15.6±2.9)μg/L]。Turner综合征组Ghrelin水平显著高于生长激素缺乏症组、特发性矮小症组、先天性甲状腺功能减退症组和宫内发育迟缓组(P值均<0.05);先天性甲状腺功能减退症组IGF-1水平显著低于生长激素缺乏症组、特发性矮小症组、Turner综合征组和宫内发育迟缓组(P值均<0.05)。特发性矮小症组青春前期的血清Ghrelin、IGF-1水平均明显低于青春期(P值均<0.05)。ROC曲线分析结果显示,血清Ghrelin、IGF-1鉴别诊断特发性矮小症的曲线下面积(area under the curve,AUC)分别为0.776、0.733,联合检测鉴别诊断特发性矮小症的AUC为0.839,灵敏度为90.0%,特异性为65.6%(P<0.001)。结论不同病因矮小症患儿血清Ghrelin、IGF-1水平均存在异常表达,特发性矮小症患儿在青春前期和青春期的血清Ghrelin、IGF-1水平差异明显,血清Ghrelin、IGF-1联合检测对特发性矮小症的鉴别诊断具有较好的诊断效能。
