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instar

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instar n.(蟲)齡〔幼蟲兩次蛻皮之間的蟲期〕。

n. (蟲)齡〔幼蟲兩次蛻皮之間的蟲期〕。 短語和例子instar2 vt. (-starred, -starring) 1.嵌星，飾以星。 2.〔古語〕把…擺成星狀。 “adult instar“ 中文翻譯：   成蟲齡蟲“fourth instar“ 中文翻譯：   四齡期“instar larvae“ 中文翻譯：   幼蟲齡期“larval instar“ 中文翻譯：   幼蟲齡“mean instar“ 中文翻譯：   平均齡期“nymphal instar“ 中文翻譯：   若蟲齡蟲“pupal instar“ 中文翻譯：   蛹令蟲“nd-instar larvae=second instar larvae“ 中文翻譯：   二齡幼蟲“nd-instar nymph=second instar nymph“ 中文翻譯：   二齡若蟲“rd-instar larvae=third instar larvae“ 中文翻譯：   三齡幼蟲“rd-instar nymph=third instar nymph“ 中文翻譯：   三齡若蟲“st-instar nymph=first instar nymph“ 中文翻譯：   一齡若蟲“th-instar nymph=fifth instar nymph“ 中文翻譯：   五齡若蟲“th-instar nymph=fourth instar nymph“ 中文翻譯：   四齡若蟲“final instar larva“ 中文翻譯：   末齡幼蟲“first-instar young“ 中文翻譯：   一齡幼蟲“fourth instar larva“ 中文翻譯：   四齡幼蟲“instar form of larvae“ 中文翻譯：   幼蟲的齡態“third instar larvae“ 中文翻譯：   三齡蠶“age; [動物學] instar; stadium“ 中文翻譯：   齡期“instaplus“ 中文翻譯：   英斯塔普魯牌照相機“instantuner“ 中文翻譯：   快速調諧器“instarlarvae“ 中文翻譯：   幼蟲齡期“instanttalk-insystem“ 中文翻譯：   即時對話系統“instat return mirror mechanism“ 中文翻譯：   瞬時回鏡機構“instants“ 中文翻譯：   瞬間

instate

Nutrient and some chemical substance of teleogryllus derelictus gorochov have been measured from 1 instars , 3 instars , 5 instars , 7 instars , 9 instars , adult of 3 days after emergence and adult of 10 days after emergence . the result as follows : the average content of protein of the different growth stages of teleogryllus derelictus gorochov amounts to 15 . 92 % 試驗根據黃褐油葫蘆的個體發育過程，選取卵、 1齡、 3齡、 5齡、 7齡、 9齡若蟲、羽化3日的雌、雄成蟲和羽化10日的雌、雄成蟲10個發育階段，分別測定其蟲體所含的營養成分和化學物質。

Several researchers reported that chironomid larvae is difficult to inactivate using free chlorine at concentrations commonly used in drinking water utilities . in addition , the 1st instar larvae can easily penetrate sand filter and then goes into waterworks reservoir and municipal service pipe due to its motility 1齡搖蚊幼蟲具有較強的游動性,可以穿透濾池進入到清水池中,由于常規的水處理消毒工藝對其難以有效地滅活,在我國一些大中城市的管網水中都曾發現過搖蚊幼蟲。

Fusion gene by pcr was inserted into bombyx mori baculovirus transfer vector pbacpak . 8 and contransfected with lineared dna of bm - bacpak6 virus into bmn cells . the homologous recombination occurred inside the cells , and the recombinant virus bacpak - 6aa - hgm - csf was expressed , as identified by pcr and southern hybridization . the bmn cells and the fifth instars were infected by the recombinant virus bacpak - 6aa - hgm - csf 本研究首先通過pcr將家蠶桿狀病毒多角體蛋白起始密碼子后的18個堿基引入到hgm - csf基因的5 ’端之前，然后將融合基因重組與家蠶桿狀病毒轉移載體pbacpak8中，獲得重組轉移載體pbacpak8 - 6aa - hgm - csf ，并與線性化bm - bacpak6dna共轉染家蠶細胞株，獲得重組病毒bacpak - 6aa - hgm - csf 。

When every s . guan carried about 1 10 ^ 7 spores of coccoid beauveria bassiana , and touched the 4 5 - instar of m . alternatus larva with 1 : 1 , 1 : 2 and 1 : 3 , the ratios of m . alternatus amounts to s . guan amounts , the parastizing infecting death rates were 55 % , 75 % , and 100 % respectively ; s . guan carried coccoid beauveria bassiana to control m . alternatus in the wood section , and the rate was 87 . 13 % 每只管氏腫腿蜂攜帶球孢白僵菌約1 10 ^ 7個孢子時，對4 5齡松墨天牛幼蟲按蟲蜂比1 : 1 、 1 : 2和1 : 3接蜂，寄生感染死亡率分別為55 % 、 75 %和100 % ；管氏腫腿蜂攜帶球孢白僵菌防治木段內的松墨天牛幼蟲寄生感染死亡率為87 . 13 % 。

The morphological diagnostic characters for many mature and early instar larvae are still lacking in china . partial sequences of the mitochondrial cytochrome oxydase i and ii and a transfor rna ( co i co ii and trna ) gene of the adults and larvae from caddisflies were . lepidostomaflavum , l . fui , l . arcuatum , paraphlegopteryx morsei , apsilochorema unculatum and apsilochorema hwangi , and the larval and adult stages of these species were sequenced and associated 采用dnastarpackage中的editseq軟件進行序列編輯、 orf查找；采用clustalx軟件進行序列比對( alignment ) ；比對結果輸入mega2 . 1軟件計算各樣品間的遺傳距離，并基于kjmura2 - parameter模型，用鄰接法( neighbor - jojning ， nj )構建系統發生樹，通過自展( bootstrap1000次)檢驗獲得系統樹分支的置信度。

It is believed that the search behavior of the third instar larva of e . balteatus de geer is extensive search before feeding , and is area - concentrated search after feeding . 8 . contacting with aphid , eating an aphid and contacting with agar block with aphid body fluid on it can arouse searching behavior of e . balteatus de geer larva from extensive search to area - concentrated search , and contacting with agar block can not 8 .明確了和蚜蟲接觸、完全取食1頭蚜蟲及和沾有蚜蟲體液的瓊脂塊接觸等食物刺激均可激發黑帶食蚜蠅幼蟲搜索行為由廣域型轉換為地域集中型，而和瓊脂塊接觸則不能刺激其搜索行為轉換。

Transgenic bt cotton mainly affect high - instar larvae by retarding the growth and intering the proceeding of ecdysis , pupation , and eclosion . the growth retardation leads to the postponement of growth period duration ( the showed that growth period duration prolonged 17 days ) . feeding the larvae with the tissue of the transgenic bt cotton and the moths with the flower of transgenic bt cotton , the number of eggs and hatching rate decreased obverviously 轉基因藥防田中，天敵昆亞群落的個體數占整個昆蟲群落總個體數的10 . 0 % ，其優勢種為蜘蛛類、七星瓢蟲( coceinellas叩te即uneitatalinnaeus ) 、龜紋瓢蟲( prol ， laea少只ponjcagoeze ) 、大眼蟬長蜷( prqp . ylaeajaponicagoeze )和草嶺(助rys叩asepre即unetatawesmael ) 。

These results suggested that the 65kda protein was a degraded product , bioassay result showed that insecticidal activity of bl - 3 was 3 - fold higher than that of bl - 2 against 3rd instar plutelh xylostella . 3 . expression of cryla ( b ) gene in pseudom on a s fluoreseent pfx - 18 in order to study expression characteristics of icps gene in pseudom onas fluorescent , a new simple transformation method of pf was established 3 .用上述重組技術獲得了含有刀口基因的lz20和含有尸2拼即“的lz20a克隆株，通過基因的誘導表達，發現p ”和pz瀏民有不同的作用機制，證明了p20具有保護cyt人溶細胞的作用，這種作用并不依賴大腸桿菌受休的不同而改變

Suggesting that the larvae of spodoptera exigua died more quickly when fb - 28 were added to the virus . the larvae of spodoptera exigua inoculated as newly molted fourth instars ( 40s ) and at various hours after molting ( 316s ) , we sacrificed larvae at various time intervals after inoculation to process the larvae for lacz expression in midgut by using tissue section techniques on early phase infection 此外，對于處于不同蟲齡的幼蟲進行病毒感染時發現：對3 ~ ( 16 )幼蟲毒力生物測定時，熒光增白劑的增效作用達到50 ，但對4齡初的供試幼蟲進行測定，熒光增白劑的增效作用卻不很明顯，僅為10 。

The bmn cells and fifth instars were infected by the recombinant virus bacpak - angiostatin . the bioactivity of the protein product was determined by human umbilical vein endothelial cells ( ecv304 ) growth assay in vitro and inhibition of vascular growth assay in cam in vivo . angiostatin showed significantly inhibitory effect on endothelial cells 重組病毒以moi = 10感染家蠶細胞( 2 10 ~ 6個細胞/ 5ml )和家蠶5齡幼蟲，表達產物用體外培養的人臍靜脈血管內皮細胞( ecv304 )及體內雞胚尿囊膜( cam )新生血管實驗檢測其抑制活性： (一)血管抑素可明顯抑制體外培養的內皮細胞增殖。

In the experiment , the first instar housefly larvae “ metallothionein mrna expressing reach maximur . after induced by cd ( 2mm ) for 48 hours , then total rna was extracted with guanidinium isothiocyanate , and mrna was isolated by the polyattract mrna isolation systems surplied by promega company 試驗中采用2mmcd ~ 2對家蠅初孵幼蟲誘導48小時，使其體內金屬硫蛋白mrna表達達到高峰，在液氮中將其研磨成粉末后采用異硫氰酸胍法提取總rna ，再用promega公司提供的小量分離mrna試劑盒純化mrna 。

In the laboratory when the first - instar larvae , third - instar larvae , and fifth - instar larvae of cotton bollworm fet with all kinds of tissues of transgenic bt cotton , the result showed that transgenic bt cotton can easily cause death to low - instar larvae and this effect deteriorates on high - instar larvae 轉bt基因棉對棉鈴蟲幼蟲的行為活動有較大的影響，表現為取食時間明顯減少，靜息、吐絲下垂和爬行時間明顯延長。棉鈴蟲幼蟲取食轉bt基因棉后，發育速度的減慢導致其生育期的延長。

On the basis of foreign documents , the dissertation firstly describes the morphology , taxonomy , and biological characters of cochineal insects . then , by using artificial climate cases in the lab , according to orthogonal design , 8 lands of combinations of temperature , humidity and light is set , while the temperature has four levels : 15 , 20 , 25 and 30 , and the relative humidity has two levels : 60 % and 80 % , while the light also has two levels : 980 lux and 60 lux . through observations and analysis of hatching percentage , survival percentage of the first instar and during from the second instar to the adult , the population tendency index , generation life cycle , size and eggs of female adult , the development of the cochineal under different conditions is studied 在收集、整理國外對胭脂蟲的研究資料基礎上，首先從胭脂蟲的形態學、分類學、生物學特性入手，進而在實驗室內利用人工氣候箱，應用正交設計方法，設計了4種溫度、 2種濕度、 2種光照梯度的不同組合，通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標，深入研究胭脂蟲在這些組合下的生長發育狀況，應用數理統計方法，分析出溫度、濕度和光照對各項生物學指標的影響，找出胭脂蟲適宜的室內培育條件，并為野外胭脂蟲的培育提供一定的理論依據。

Female lays its eggs hi mid - june and eggs will hatch in 20 days , larvae feeding on aristolochia kaempferi from late june to mid - september ( about 50 - 55 days ) , five instars . from mid - august , larvae become pupae in tree branches or brushes with changeable color based on background 幼蟲期從六月下旬到九月中旬，幼蟲五齡，歷期50 - 55天，取食異葉馬兜鈴，八月中旬開始老熟幼蟲在灌木、樹枝上化蛹，蛹的顏色隨化蛹時背景顏色變化，九月上旬為化蛹盛期。

The best searching densities of the first , second and third instar larva of e . balteatus are 6 . 73 , 10 . 09 and 44 . 03 aphids respectively . 3 . the predation ratio of e . balteatus is the lowest at 14 ? and the predation ratio at 18 c , 22 c , 26 c and 30 c are not different 黑帶食蚜蠅1齡、 2齡和3齡幼蟲對麥長管蚜的最佳尋找密度分別為6 . 73頭、 10 . 09頭、 44 . 03頭，這對田間利用黑帶食蚜蠅幼蟲防治麥長管蚜有一定參考價值。

As a consequense of eutrophication , chironomid larvae excessively propagates in water sources , such as reservoir and fresh lake , which induced the 1st instar larvae of chironomid in source water to enter drinking water treatment system 水體富營養化使得搖蚊幼蟲在水庫、湖泊類水源中大量孳生繁殖,直接導致其可以在給水處理系統中出現。

There are mutual interference among the third instar larvae of episyrphus balteatus de geer , and the searching efficiency decreases and the intensity of scrambling competition increases with increase of its density 黑帶食蚜蠅3齡幼蟲存在著種內干擾，其尋找效應隨著自身密度的增加而降低，其分攤競爭強度隨著自身密度的增加而增加。

The functional response of the first , second and third instar larvae of e . balteatus preying on macrosiphum avenae ( f . ) show the rolling ii type with better fitting 黑帶食蚜蠅各齡幼蟲對麥長管蚜macrosiphumavenae ( f . )的捕食功能反應用holling ?型和新holling ?型功能反應模型擬合均較好。

The daily maximum number of m . avenae preyed theoretically by the first , second and third instar larva of e . balteatus are 5 . 13 , 26 . 00 and 119 . 26 aphids respectively . 2 黑帶食蚜蠅1齡、 2齡和3齡幼蟲對麥長管蚜的日最大捕食量分別為5 . 13頭、 26 . 00頭和119 . 26頭。