99精品国产在热久久无码,中文在线А天堂中文在线新版,和尚吮她的花蒂和奶水视频,乡下人产国偷V产偷V自拍

網(wǎng)站首頁技術(shù)中心 > 利用Dualex植物氮平衡指數(shù)測(cè)定儀研究禾本科植物的鐵失綠癥
產(chǎn)品中心

Product center

利用Dualex植物氮平衡指數(shù)測(cè)定儀研究禾本科植物的鐵失綠癥

更新時(shí)間:2022-05-06 點(diǎn)擊量:1371

1649324048304326.png

1649324060931732.png

許多研究表明,土壤和沉積腐殖酸對(duì)石灰性土壤中種植的植物生長(zhǎng)的有益作用與它們改善鐵植物營(yíng)養(yǎng)的能力之間存在密切關(guān)系。這些結(jié)果歸因于腐殖酸(HA)改善鐵溶解度和生物利用度的能力。然而,不能排除與腐殖酸對(duì)缺鐵植物根系中激活的特定機(jī)制的作用有關(guān)的其他影響。雖然這個(gè)問題已經(jīng)在雙子葉植物中進(jìn)行了研究,但在禾本科植物中還沒有具體的研究。在這里,我們研究了從泥炭中提取的腐殖酸(HA)在鐵缺乏和充足的條件下提高小麥植株鐵營(yíng)養(yǎng)的能力。結(jié)果表明,HA可以改善缺鐵小麥植株的生理狀態(tài),減輕缺鐵對(duì)植株發(fā)育的一些有害影響,并提高植株向營(yíng)養(yǎng)液分泌植物鐵載體的能力。HA的這種作用與葉片中鐵活性池的增加有關(guān),這可能與HA與營(yíng)養(yǎng)液中的植物鐵載體相互作用所產(chǎn)生的鐵絡(luò)合物的動(dòng)員有關(guān)。反式玉米素核糖苷(tZR)的作用可能有利于鐵從根向地上部的轉(zhuǎn)移,因?yàn)樵谌辫F植物中,HA提高了這種植物激素的葉片濃度。

Humic Acid Alleviates Fe Chlorosis in Graminaceous Plants Through Coordinated Fe-Dependent and Fe-Independent Mechanisms

Many studies have shown the close relationship between the beneficial action of soil and sedimentary humic acids on the growth of plants c*ted in calcareous soils and their ability to improve Fe plant nutrition. These results have been ascribed to the humic acid (HA) capability to improve Fe solubility and bioavailability. However, other effects more related to a humic acid action on the specific mechanisms activated in roots of plants under Fe deficiency cannot be ruled out. Although this question has been studied in dicotyledonous plants, in graminaceous plants there are no specific studies. Here we investigate the ability of a humic acid extracted from peat (HA) to improve Fe nutrition in wheat plants c*ted under Fe deficient and sufficient conditions. The results show that HA can improve the physiological status of Fe deficient wheat plants by alleviating some of the deleterious consequences of Fe deficiency on plant development and increasing the plant ability to secrete phytosiderophores to the nutrient solution. This action of HA is associated with increases in the Fe-active pool in leaves that might be related to the mobilization of the Fe complexed by HA resulting from the interaction of HA with the phytosiderophores in the nutrient solution. The Fe translocation from the root to the shoot may be favored by the action of trans-Zeatin Riboside (tZR) since the leaf concentration of this phytohormone was enhanced by HA in Fe deficient plants.

相關(guān)閱讀

Dualex便攜式氮平衡-葉綠素-花青素-黃酮醇測(cè)量?jī)x

PESSL便攜式Dualex便攜式植物多酚-葉綠素儀原理


国产精品视频在线观看| 色婷婷久久久SWAG精品| 黑人巨大精品欧美黑寡妇av免费| 羞羞漫画网页入口| xxxxx性bbbbb欧美| 东北夫妇大炕交换乱P| 狠狠噜天天噜日日噜| 久久精品一区二区三区四区| 国产成人免费ā片在线观看| 两个领导在车里吃我奶| 阿娇跪下吃J8图片| 久久97久久97精品免视看秋霞| 免费看裸裸体美女啪啪无遮挡| 无人区乱码一区二区三区| 午夜福利在线观看| 国产真实办公室沙发午睡系列| 欧美一区二区AV人片在线观看| brazzers欧美| 久久久久久久性潮| 天干天干天啪啪夜爽爽AV | 一进去一爽又粗又大| 丰满女人又爽又紧又丰满| 野外吮她的花蒂两男一女| 国产精品毛片无遮挡高清 | 猫咪AV成人永久网站在线观看| 亚洲熟女乱综合一区二区| 精品久久人人爽天天玩人人妻| 成人亚洲精品777777| 小SAO货水好多真紧H国产| 国产动作大片中文字幕| 孕妇高潮XXXXX孕妇| 亚洲AV无码国产综合专区| 亚洲AV无码乱码在线观看富二代 | 欧美丰满熟妇XXXX喷水| 乱公和我做爽死我了A片| 日日碰狠狠添天天爽无码| 女人下边紧了好还是松点好 | 国产在线观看国偷精品产拍| 欧美裸体XXXX极品少妇| 精品国产污污免费网站AⅤ| 一本色道DVD中文字幕蜜桃视频|