福建省2种木本植物新记录

通过2017～2018年对福建省本土植物进行野外调查,发现2种木本植物新记录:薄叶红厚壳(Calophyllum membranaceum Gardn. & Champ.)和光叶紫玉盘(Uvaria boniana Finet&Gagnep.)。薄叶红厚壳为藤黄科(Calophyllaceae)红厚壳属(Calophyllum)植物,该属为福建省新记录属;光叶紫玉盘为福建省番荔枝科(Annonaceae)紫玉盘属(Uvaria)新记录种。现予以报道,并提供相应照片及描述,此次报道丰富了福建省本土木本植物资源,凭证标本存放于福建农林大学林学院植物标本馆。     

热带滨海植物红厚壳的抗逆生物学特性

为了解红厚壳(Calophyllum inophyllum)的抗逆特性,对西沙群岛自然生长的红厚壳叶片的形态解剖、生理生态、以及叶片和适生土壤的元素含量进行了研究。结果表明,红厚壳是阳生性植物,其上表皮厚,海绵组织发达且栅栏组织排列紧密,气孔排列松散且密度小(24.40 mm~(-2)),有利于叶片保水抵御干旱。叶片的叶绿素a、b含量低(分别为0.87和0.43 mg g~(-1)),表明红厚壳具适应强光环境的能力。叶片的MDA含量低(13.46 nmol g~(-1)),PRO含量高(127.89μg g~(-1)),SOD活性高(149.42 U g~(-1)),总抗氧化能力高(388.60 U g~(-1)),显示红厚壳能通过提高自身的抗氧化能力抵御膜脂过氧化伤害。红厚壳自然生长的珊瑚岛土壤较为贫瘠、营养元素含量低,但红厚壳植株体内具有较高的营养元素含量,表明红厚壳营养元素利用率高,对于贫瘠土壤具有很好的适应能力。因此,红厚壳具有较高的抗氧化胁迫能力和耐受干旱的能力,适宜生长在热带珊瑚岛等土壤贫瘠的生境,可以作为热带珊瑚岛防风固沙和植被恢复的工具种。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中最优质的地方独有特产。罗布红麻,明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,水平根每年会萌发新株,连绵不绝,是美化荒漠最好的生态植物和功效显著的绿色天然保健植物。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中最优质的地方独有特产。罗布红麻,明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,水平根每年会萌发新株,连绵不绝,是美化荒漠最好的生态植物和功效显著的绿色天然保健植物。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中的极品。罗布红麻,唐代《新修本苹》、明代《救荒本苹》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,连绵不绝,是美化荒漠最好的生态植物乖功效显著的绿色保健植物。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中的极品。罗布红麻,唐代《新修本草》、明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum vellctum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,连绵不绝,是美化荒漠最好的生态植物和功效显著的绿色保健植物。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中的极品。罗布红麻,唐代《新修本草》、明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn.],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,连绵不绝,是美化荒漠最好的生态植物和功效显著的绿色保健植物。     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocyttum venetum Linn．）中的极品。罗布红麻,唐代《新修本草》、明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocutum venetum Linn．）中的极品。罗布红麻,唐代《新修本草》、明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,     

戈宝红麻简介

戈宝红麻（GAUBAU KENDER）是罗布红麻（Apocynum venetum Linn．）中的极品。罗布红麻,唐代《新修本草》、明代《救荒本草》称“泽漆”,《中国植物志》和《中华人民共和国药典》称“罗布麻”[（红麻）Apocynum venetum Linn．],是多年生宿根草本植物,宿根正常可存活30年左右,根系发达,新旧水平根每年都萌发新株,     

Entwicklungsgeschichte und Ultrastruktur von Pollenkitt und Exine bei nahe verwandten entomophilen und anemophilen Angiospermensippen derAlismataceae,Liliaceae, Juncaceae,Cyperaceae, Poaceae undAraceae

Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout.

     

Identification and Characterization of the First Equine Parainfluenza Virus 5

正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various     

Pathogenic Characterization and Full Length Genome Sequence of a Reassortant Infectious Bursal Disease Virus Newly Isolated in Pakistan

<正>Dear Editor,Infectious bursal disease (IBD) is one of the most important diseases of the poultry. The IBD virus (IBDV), a nonenveloped virus belonging to the Birnaviridae family with a genome consisting of two segments of double-stranded RNA (segments A and B), targets B lymphocytes of bursa of Fabricious leading to immunosuppression. In Pakistan,poultry farming is the second biggest industry and IBD is the second biggest disease threating the poultry sector.However, there is limited genome information of IBDV     

Similar aerosol emission rates and viral loads in upper respiratory tracts for COVID-19 patients with Delta and Omicron variant infection

Highlights
1 Aerosol emission rates of Delta or Omicron patients were similar.
2 Viral loads in upper respiratory tract of Alpha, Delta and Omicron patients were similar.
3 Viral loads in upper respiratory tract of vaccinated or unvaccinated Delta patients had no difference.     

Recombinant human interferon-α1b inhibits SARS-CoV-2 better than interferon-α2b in vitro

Highlights
1) A comprehensive evaluation method for anti-SARS-CoV-2 drugs was established based on RT-qPCR, TCID₅₀ method, and immunofluorescence.
2) A significant antiviral effect of rHuIFN-α1b was shown with EC₅₀=0.12 IU/mL in Vero cells and EC₅₀=0.52 IU/mL in Calu-3 cells, which was better than rHuIFN-α2b (EC₅₀=0.25 IU/mL in Vero cells and EC₅₀=2.48 IU/mL in Calu-3 cells).
3) rHuIFN-α1b has a good potential in the application of anti-COVID-19 therapy.     

Continued antigenic variation of highly pathogenic avian influenza A (H7N9) virus in laying hens in China, 2020–2021

Highlights
1. 13 strains of H7N9 viruses from laying hens in 2020 and 2021 were identified.
2. H7N9 viruses in China comprised at least 11 genotypes.
3. H7N9 viruses are high pathogenic in chickens, not in ducks.
4. The most H7N9 viruses cross-reacted poorly with H7-Re3 antiserum.
5. The H7-Re3 vaccine was unable to prevent H7N9 infection.