通过抑制其复制以及调控香蕉中叶绿素和类胡萝卜素的生物合成与降解来抑制所产生的症状。
suppresses the symptoms produced by by inhibiting its replication and manipulating chlorophyll and carotenoid biosynthesis and degradation in banana.
作者信息
Sinijadas K, Paul Amitha, Radhika N S, Johnson Joy Michal, Manju R V, Anuradha T
机构信息
Department of Plant Pathology, College of Agriculture (Kerala Agricultural University), Vellayani, Thiruvananthapuram, Kerala 695 522 India.
Coconut Research Station (Kerala Agricultural University), Balaramapuram, Thiruvananthapuram, Kerala 695 501 India.
出版信息
3 Biotech. 2024 May;14(5):141. doi: 10.1007/s13205-024-03983-y. Epub 2024 Apr 29.
UNLABELLED
(BBrMV) infection results in characteristic reddish streaks on pseudostem and chlorotic spindle lesions on leaves leading to traveler's palm appearance and complete crop loss depending on the stage of infection in banana plants. Here, we discuss the influence of colonization (a beneficial fungal root endophyte) on BBrMV infection, specific viral component genes responsible for symptom development, chlorophyll and carotenoid biosynthesis, and degradation in BBrMV-infected banana plants. colonization significantly and substantially reduced the severity of Banana bract mosaic disease (BBrMD) in addition to increased growth, development and yield of banana plants. The percent disease incidence (PDI) of BBrMV ranges from 50 to 70 per cent in plants raised from suckers and from 58 to 92 per cent in TC plants under artificial inoculation. -colonized plants inoculated with BBrMV resulted in an enhanced plant height, root length, leaf width, and leaf length of 72, 88, 90, and 60 per cent, respectively, compared to BBrMV alone-infected banana plants along with the reduced disease severity. BBrMV infection showed a drastic decrease of chlorophyll a, chlorophyll b, and total chlorophyll contents by down-regulating chlorophyll biosynthesis ( and upregulating chlorophyll degradation ( and and ) genes; and by up-regulating carotenoids biosynthesis (-) and down-regulating its degradation (-) genes compared to -colonized banana plants challenge inoculated with BBrMV. also inhibited the expression of the viral genes ( and ) involved in symptom development. colonized banana plants reduced the BBrMV symptoms severity by enhancing chlorophyll biosynthesis; and decreasing chlorophyll degradation and carotenoid biosynthesis and degradation; and inhibiting the viral genes responsible for symptom development in addition to enhanced growth and yield of banana plants.
SUPPLEMENTARY INFORMATION
The online version contains supplementary material available at 10.1007/s13205-024-03983-y.
未标记
香蕉束顶病毒（BBrMV）感染会导致假茎上出现特征性的红色条纹以及叶片上出现褪绿纺锤形病斑，根据香蕉植株的感染阶段，会导致旅人蕉外观并使作物完全损失。在此，我们讨论了定殖（一种有益的真菌根内生菌）对BBrMV感染、负责症状发展的特定病毒成分基因、叶绿素和类胡萝卜素生物合成以及BBrMV感染的香蕉植株中降解的影响。定殖除了提高香蕉植株的生长、发育和产量外，还显著且大幅降低了香蕉苞片花叶病（BBrMD）的严重程度。在人工接种下，从吸芽培育的植株中BBrMV的发病率（PDI）范围为50%至70%，在组培苗中为58%至92%。与仅感染BBrMV的香蕉植株相比，接种BBrMV的定殖植株的株高、根长、叶宽和叶长分别提高了72%、88%、90%和60%，同时病害严重程度降低。与接种BBrMV的定殖香蕉植株相比，BBrMV感染通过下调叶绿素生物合成（并上调叶绿素降解（以及 ）基因，使叶绿素a、叶绿素b和总叶绿素含量急剧下降；通过上调类胡萝卜素生物合成（-）并下调其降解（-）基因。定殖还抑制了参与症状发展的病毒基因（和 ）的表达。定殖的香蕉植株通过增强叶绿素生物合成、减少叶绿素降解和类胡萝卜素生物合成及降解、抑制负责症状发展的病毒基因，降低了BBrMV症状的严重程度，此外还提高了香蕉植株的生长和产量。
补充信息
在线版本包含可在10.1007/s13205-024-03983-y获取的补充材料。
Zotero 插件