국내 현대정원의 조성 디자인 경향성을 확인하고자 우수 경 관 정원 80개소 대상으로 적용 양식 및 정원 식물을 조사하였 다. 조사 대상 80개소 정원 중 53.7%는 서울 및 수도권, 46.3%는 그 외 지역에 소재하고 있다. 또한, 관리 유형에 따 라 공동 정원, 상업시설 정원, 개인 정원으로 구분 되었으며, 각 62.5%, 21.3%, 16.2%로 나타났다. 19~20세기 해외 정원 사조에 따라 조성 양식은 12유형(정형식, 비정형식, 정형 및 비정형 복합식, 건축식, 자연, 신풍경, 뉴저먼 스타일, 모더니 즘, 프레리 스타일, 뉴웨이브 스타일, 낭만주의, 예술작품 정 원)으로 분류되었다. 우리나라 현대 정원은 단일 및 복합 양식 활용이 각 55.0%와 45.0%로 유사하였다. 주로 정형 및 비정 형 복합식 정원이 활용되는 반면, 정형 및 비정형 복합식 정원 대비 낭만주의, 모더니즘, 프레리 및 뉴웨이브 스타일 이용 빈 도는 0.02~0.06배 수준이었다. 조성 양식 활용에 따라 이용 되는 식물 소재 유형에는 큰 차이가 없었으나, 특정 디자인에 서 식재 빈도가 높은 분류군을 확인했다.

Humulus japonicus (HJ) is a widely used herbal medicine for pulmonary tuberculosis, hypertension, leprosy, and venomous wounds in Asia, particularly in China. Although HJ has certain physiological activities, such as longitudinal bone growth, antioxidation and alleviation of rheumatism, its anticancer activities, other than in colorectal and ovarian cancer, are yet to be studied. In this study, we investigated the anti-cancer activity and mechanism of methanol extracts of HJ (MeHJ) against human FaDu hypopharyngeal squamous carcinoma cells. MeHJ suppressed FaDu cell viability without affecting normal cells (L929), which was demonstrated using the MTT and Live & Dead assays. Furthermore, MeHJ effectively inhibited colony formation of FaDu cells, even at non-cytotoxic concentrations, and significantly induced apoptosis through the proteolytic cleavage of caspase-9, -3, -7, poly (ADP-ribose) polymerase and through the downregulation of BCL-2 and upregulation of BAX in FaDu cells, as determined by DAPI staining, flow cytometry, and western blot analyses. Collectively, these findings suggest that the inhibitory effects of MeHJ on the growth and colony formation of oral cancer cells may be mediated by caspase- and mitochondrial-dependent apoptotic pathways in human FaDu hypopharyngeal squamous carcinoma cells. Therefore, MeHJ has the potential to be used as a natural chemotherapeutic drug against human oral cancer.

Here, we investigated antioxidant defense mechanism in the spermatheca of A. mellifera queens via RNA-seq analysis of spermathecae in both mated and virgin queens. We identified the genes encoding antioxidant proteins, which were differentially expressed in the spermatheca of mated queens. The concentrations of antioxidant proteins, such as superoxide dismutase 1 (SOD1), catalase, glutathione peroxidase (GTPX), and transferrin (Tf) together with the levels of ROS, H2O2, and iron were higher in the spermathecal fluid of mated queens as opposed to those in the spermathecal fluid of virgin queens; this indicated that increase in antioxidant protein concentration is an antioxidant defense mechanism occurring in the spermathecal fluid of mated queens against ROS; this mechanism involves conversion of ROS using antioxidant enzymes and Tf-mediated inhibition of the Fenton reaction occurring between Fe2+ and H2O2. Our data indicate that an increased expression of antioxidant proteins could facilitate prolonged storage and survival of sperms in the spermatheca of mated queens, suggesting the role of antioxidant proteins in antioxidative defense against ROS.

Royal jelly (RJ) is a well-known functional and medicinal food for human health promotion. Major royal jelly proteins (MRJPs), which are the major protein components in RJ, exhibit antimicrobial activities. However, the identities of the MRJPs of RJ responsible for its antioxidant effects have remained unclear. Here, we report that honeybee (Apis cerana) MRJP 2 (AcMRJP2) acts as an antimicrobial and antioxidant agent in RJ. Using recombinant AcMRJP2, which was produced in baculovirus-infected insect cells, we established the antimicrobial and antioxidant roles of MRJP 2. AcMRJP2 bound to the surfaces of bacteria, fungi, and yeast, which then induced structural damage in the microbial cell walls and led to a broad spectrum of antimicrobial activities. AcMRJP2 protected mammalian and insect cells via the direct shielding of the cell against oxidative stress, which led to reduced levels of caspase-3 activity and oxidative stress-induced cell apoptosis, followed by increased cell viability. Moreover, AcMRJP2 exhibited DNA protection activity against reactive oxygen species (ROS). Our data indicate that AcMRJP2 could play a crucial role as an antimicrobial agent and antioxidant in RJ, suggesting that MRJP 2 is a component responsible for the antimicrobial and antioxidant activities of RJ.

Bee venom, which serves as a weapon to defend the colony from predator attacks, induces an immediate local inflammatory response that causes acute redness and swelling at the site of the sting. This venom-induced inflammation is a rapid anti-predatory defense strategy of the bee against vertebrate predators. Although acute inflammation by venom from venomous arthropods, including bees, is a typical response, how venom acutely elicits inflammatory responses remains unknown. Here, we identify a novel mechanism underlying acute inflammation and provide a rationale for the presence of superoxide dismutase (SOD3) in bee venom. In mouse models, paradoxically, SOD3 in bee venom (bvSOD3) acts as a reactive oxygen species (ROS)-based harm-inducing system to promote acute inflammation. Exogenous bvSOD3 rapidly induced overproduction of H2O2 through endogenously produced superoxide by venom components, such as melittin and phospholipase A2 (PLA2), which then upregulated the expression of proinflammatory genes and promoted the acute inflammatory response. Furthermore, a more severe noxious effect by bvSOD3 elevated a type 2 immune response, and bvSOD3 immunization protected against bvSOD3-mediated toxicity. Our findings that bvSOD3 promotes an acute inflammatory response and induces a protective immune response against inflammation may offer a new approach in venom therapy/immunotherapy.

Major royal jelly proteins (MRJPs), important protein components of bee royal jelly (RJ) and exclusive nourishments for queen, exhibit various biological and pharmacological activities. RJ is one of the most studied bee products, but the crucial roles for MRJP2 as an antimicrobial and antioxidant agents remain largely unknown. Here we demonstrated the antimicrobial and antioxidant functions of the Asiatic honeybee (Apis cerna) MRJP2 (AcMRJP2). Recombinant AcMRJP2 of approximately 53 kDa was expressed in baculovirus-infected insect cells, and it exhibited antimicrobial activity against bacteria, fungi, and yeast via binding to microbial surfaces and inducing structural damage in microbial cell walls. AcMRJP2 protected mammalian and insect cells against oxidative damage through shielding of cell membranes. Interestingly, AcMRJP2 exhibited DNA protection activity and DPPH radical-scavenging activity. Altogether, our data demonstrated that AcMRJP2 functions as antimicrobial and antioxidant agents.

Honeybee (Apis mellifera) egg-yolk protein vitellogenin (Vg) plays roles in immunity, antioxidation, and life span beyond reproduction, but it also acts as an allergen Api m 12 in venom. Here we established antimicrobial and antioxidant roles of honeybee Vg in the body and venom. Using the cDNA encoding Vg identified from Asiatic honeybee (A. cerana) workers, recombinant A. cerana Vg (AcVg) protein of approximately 180 kDa was produced in baculovirus-infected insect cells. In A. cerana worker bees, AcVg was expressed in the fat body and venom gland and was present in the secreted venom. AcVg induced structural damage in microbial cell walls via binding to microbial surfaces and exhibited antimicrobial activity against bacteria and fungi. AcVg protected mammalian and insect cells against oxidative damage through direct shielding of cell membranes. Interestingly, AcVg exhibited DNA protection activity against reactive oxygen species (ROS). Furthermore, the transcript level of AcVg was upregulated in the fat body, but not in the venom gland, of worker bees with antimicrobial peptides and antioxidant enzymes in response to microbial infection and oxidative stress. Our data indicate that AcVg is involved in innate immunity upon infection and in a defense system against ROS, supporting a crucial role of honeybee Vg as an antimicrobial and antioxidant agent in the body and venom.

수출 시 절화 장미의 재배 및 공선단계의 관행 기술을 개선하고자 수출 절화 장미 ‘Beast’와 ‘Cappucino’의 관행 관리 실태를 조사하였다. 일본으로 장미를 수출하는 파주시와 전주시의 재배농가 농가와 공선장 내 채화와 선별 시 사용하는 관리도구의 청결수준을 조사한 결과, 채화가위, 길이 선별 가위와 장갑과 선별대, 포장 시 사용하는 장갑과 선별대에서 300CFU･mL-1이상의 박테리아수가 검출되었다. 파주시 재배 농가 저온고 내 절화가 담긴 저장수는 2.8×105CFU･mL-1로 박테리아가 검출되었으며, Chrysal RVB clear intensive(Chrysal, Netherlands, 1%)를 사용하는 전주시 농가의 저장수에서는 4.7×105CFU･mL-1로 검출되었다. 파주시 공선장의 수출박스내 박테리아수는 후처리제(Al2O3, pH 4.5)를 사용함에도 불구하고 2.7ⅹ104CFU･mL-1이었다. 한편 파주시 재배농가에서 포장을 마친 국내 생산수출용 ‘Beast’와 ‘Beast’의 가공장미인 매직로즈의 절화보존제(Florallife-Clear200, Oasisfloral, Japan) 유무에 따른 절화수명 연장 효과를 알아보고자 실험한 결과, ‘Beast’의 경우 절화보존제 처리구의 절화수명은 TW에 비해 3일 절화수명을 연장시킬 수 있었다. 반면 매직로즈의 절화수명은 TW와 절화보존제처리 간 유의적 차이가 없었다. 이때 보존용액 내 박테리아수는 ‘Beast’의 경우 TW와 절화보존제 처리구에서 각각 8.1×104, 2.0×103CFU･mL-1이었으며, 매직로즈의 경우 9.9×104, 1.0×103CFU･mL-1이었다. ‘Cappuccino’를 이용하여 국내용 선별 단계(건식운송)와 수출단계(습식운송)를 마친 절화의 절화수명을 조사한 결과, 국내유통용의 절화수명은 8일인 반면 수출용은 12일로, 습식운송했던 수출용 절화가 건식운송한 국내유통용절화보다 4일 길었다. 이에 따른 절화수명종료 현상은 국내유통용처리에서는 꽃목굽음(bent neck)과 꽃잎 탈리 현상이 각각 50%로 나타났고, 수출용처리구에서는 꽃잎탈리는 72.7%, 꽃목굽음은 18.2%이 나타났으며, 국내유통용처리에서 나타나지 않았던 잿빛곰팡이병이 9.1%로 나타났다.

Bee venom contains a variety of peptide constituents, including low-molecular-weight protease inhibitors. While the putativelow-molecular-weight serine protease inhibitor Api m 6 containing a trypsin inhibitor-like cysteine-rich domain was identifiedfrom honeybee (Apis mellifera) venom, no anti-fibrinolytic or anti-microbial roles for this inhibitor have been elucidated.In this study, we identified an Asiatic honeybee (A. cerana) venom serine protease inhibitor (AcVSPI) that was shownto act as a microbial serine protease inhibitor and plasmin inhibitor. AcVSPI was found to consist of a trypsin inhibitor-likedomain that displays ten cysteine residues. Interestingly, the AcVSPI peptide sequence exhibited high similarity to the putativelow-molecular-weight serine protease inhibitor Api m 6, which suggests that AcVSPI is an allergen Api m 6-like peptide.Recombinant AcVSPI was expressed in baculovirus-infected insect cells, and it demonstrated inhibitory activity against trypsin,but not chymotrypsin. Additionally, AcVSPI has inhibitory effects against plasmin and microbial serine proteases; however,it does not have any detectable inhibitory effects on thrombin or elastase. Consistent with these inhibitory effects, AcVSPIinhibited the plasmin-mediated degradation of fibrin to fibrin degradation products. AcVSPI also bound to bacterial andfungal surfaces and exhibited anti-microbial activity against fungi as well as gram-positive and gram-negative bacteria. Thesefindings demonstrate the anti-fibrinolytic and anti-microbial roles of AcVSPI as a serine protease inhibitor.