Effects of Leaf Cutting on Fusarium Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under F. graminearum Inoculation Condition

Fusarium head blight (FHB), caused by Fusarium graminearum, occurs mainly on developing wheat seeds, which are important energy sinks. Leaf cutting (removing a portion of the energy sources) could have an effect on the damage caused by F. graminearum<...

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Autores principales:	Qianglan Huang, Peigao Luo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Fusarium graminearum</i> spikelet source-sink relationship <i>Triticum aestivum</i> L. yield component Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/8959b765d61b4bda8499b88f41c8dbe2
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spelling	oai:doaj.org-article:8959b765d61b4bda8499b88f41c8dbe22021-11-25T15:58:31ZEffects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition10.3390/agriculture111110652077-0472https://doaj.org/article/8959b765d61b4bda8499b88f41c8dbe22021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1065https://doaj.org/toc/2077-0472<i>Fusarium</i> head blight (FHB), caused by <i>Fusarium graminearum</i>, occurs mainly on developing wheat seeds, which are important energy sinks. Leaf cutting (removing a portion of the energy sources) could have an effect on the damage caused by <i>F. graminearum</i>. To determine the effects of leaf cutting on disease development, photosynthesis parameters, and yield components between resistant and susceptible wheat genotypes, the wheat FHB-resistant line L693 and FHB-susceptible line L661, which have similar genetic backgrounds, were used in this study. Different numbers of leaves were removed before inoculation with <i>F. graminearum</i>, and photosynthesis parameters, including the net photosynthesis rate (<i>Pn</i>), stomatal conductance (<i>Gs</i>), and intercellular CO<sub>2</sub> concentration (<i>Ci</i>), were measured at various time points both before and after <i>F. graminearum</i> infection. The number of diseased spikelets (NDS) and yield components were also measured. The greenhouse and field experiments results showed that cutting leaves could decrease the NDS and alleviate the damage from FHB, which could partly compensate for the yield loss caused by <i>F. graminearum</i> under <i>F. graminearum</i> inoculation condition. Leaf cutting did not significantly change the total grain weight per spike (GWS) after <i>F. graminearum</i> inoculation in both L661 and L693. Further study found that the <i>Pn</i> obviously differed between L661 and L693 after infection with <i>F. graminearum</i> and cutting leaves could aggravate the <i>Pn</i> difference between L661 and L693, which revealed cutting leaves could change the balance between source and sink, with the change of <i>Pn</i>, which may refer to FHB resistance. This study provides new insights into both energy sources and sinks for future studies on the physiological mechanism underlying systematic resistance against FHB.Qianglan HuangPeigao LuoMDPI AGarticle<i>Fusarium graminearum</i>spikeletsource-sink relationship<i>Triticum aestivum</i> L.yield componentAgriculture (General)S1-972ENAgriculture, Vol 11, Iss 1065, p 1065 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Fusarium graminearum</i> spikelet source-sink relationship <i>Triticum aestivum</i> L. yield component Agriculture (General) S1-972
spellingShingle	<i>Fusarium graminearum</i> spikelet source-sink relationship <i>Triticum aestivum</i> L. yield component Agriculture (General) S1-972 Qianglan Huang Peigao Luo Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
description	<i>Fusarium</i> head blight (FHB), caused by <i>Fusarium graminearum</i>, occurs mainly on developing wheat seeds, which are important energy sinks. Leaf cutting (removing a portion of the energy sources) could have an effect on the damage caused by <i>F. graminearum</i>. To determine the effects of leaf cutting on disease development, photosynthesis parameters, and yield components between resistant and susceptible wheat genotypes, the wheat FHB-resistant line L693 and FHB-susceptible line L661, which have similar genetic backgrounds, were used in this study. Different numbers of leaves were removed before inoculation with <i>F. graminearum</i>, and photosynthesis parameters, including the net photosynthesis rate (<i>Pn</i>), stomatal conductance (<i>Gs</i>), and intercellular CO<sub>2</sub> concentration (<i>Ci</i>), were measured at various time points both before and after <i>F. graminearum</i> infection. The number of diseased spikelets (NDS) and yield components were also measured. The greenhouse and field experiments results showed that cutting leaves could decrease the NDS and alleviate the damage from FHB, which could partly compensate for the yield loss caused by <i>F. graminearum</i> under <i>F. graminearum</i> inoculation condition. Leaf cutting did not significantly change the total grain weight per spike (GWS) after <i>F. graminearum</i> inoculation in both L661 and L693. Further study found that the <i>Pn</i> obviously differed between L661 and L693 after infection with <i>F. graminearum</i> and cutting leaves could aggravate the <i>Pn</i> difference between L661 and L693, which revealed cutting leaves could change the balance between source and sink, with the change of <i>Pn</i>, which may refer to FHB resistance. This study provides new insights into both energy sources and sinks for future studies on the physiological mechanism underlying systematic resistance against FHB.
format	article
author	Qianglan Huang Peigao Luo
author_facet	Qianglan Huang Peigao Luo
author_sort	Qianglan Huang
title	Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
title_short	Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
title_full	Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
title_fullStr	Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
title_full_unstemmed	Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition
title_sort	effects of leaf cutting on <i>fusarium</i> head blight disease development, photosynthesis parameters and yield of wheat under <i>f. graminearum</i> inoculation condition
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8959b765d61b4bda8499b88f41c8dbe2
work_keys_str_mv	AT qianglanhuang effectsofleafcuttingonifusariumiheadblightdiseasedevelopmentphotosynthesisparametersandyieldofwheatunderifgraminearumiinoculationcondition AT peigaoluo effectsofleafcuttingonifusariumiheadblightdiseasedevelopmentphotosynthesisparametersandyieldofwheatunderifgraminearumiinoculationcondition
_version_	1718413390970355712

Effects of Leaf Cutting on <i>Fusarium</i> Head Blight Disease Development, Photosynthesis Parameters and Yield of Wheat under <i>F. graminearum</i> Inoculation Condition

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