Flooding tolerance of Carex species. I. Root structure

Planta ◽  
1998 ◽  
Vol 207 (2) ◽  
pp. 189-198 ◽  
Author(s):  
Petra R. Moog
Keyword(s):  
Flooding Tolerance ◽  
Root Structure

scholarly journals Plant Morphological, Physiological and Anatomical Adaption to Flooding Stress and the Underlying Molecular Mechanisms

2021 ◽  
Vol 22 (3) ◽  
pp. 1088
Author(s):  
Weitao Jia ◽  
Maohua Ma ◽  
Jilong Chen ◽  
Shengjun Wu
Keyword(s):  
Molecular Mechanisms ◽  
Sequence Similarity ◽  
Survival Strategies ◽  
Ethylene Response Factor ◽  
Flooding Tolerance ◽  
Plant Tolerance ◽  
Flooding Stress ◽  
Crop Varieties ◽  
The Future ◽  
Plant Acclimation

Globally, flooding is a major threat causing substantial yield decline of cereal crops, and is expected to be even more serious in many parts of the world due to climatic anomaly in the future. Understanding the mechanisms of plants coping with unanticipated flooding will be crucial for developing new flooding-tolerance crop varieties. Here we describe survival strategies of plants adaptation to flooding stress at the morphological, physiological and anatomical scale systemically, such as the formation of adventitious roots (ARs), aerenchyma and radial O2 loss (ROL) barriers. Then molecular mechanisms underlying the adaptive strategies are summarized, and more than thirty identified functional genes or proteins associated with flooding-tolerance are searched out and expounded. Moreover, we elaborated the regulatory roles of phytohormones in plant against flooding stress, especially ethylene and its relevant transcription factors from the group VII Ethylene Response Factor (ERF-VII) family. ERF-VIIs of main crops and several reported ERF-VIIs involving plant tolerance to flooding stress were collected and analyzed according to sequence similarity, which can provide references for screening flooding-tolerant genes more precisely. Finally, the potential research directions in the future were summarized and discussed. Through this review, we aim to provide references for the studies of plant acclimation to flooding stress and breeding new flooding-resistant crops in the future.

scholarly journals Identification and Functional Analysis of ThADH1 and ThADH4 Genes Involved in Tolerance to Waterlogging Stress in Taxodium hybrid ‘Zhongshanshan 406’

Genes ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 225
Author(s):  
Lei Xuan ◽  
Jianfeng Hua ◽  
Fan Zhang ◽  
Zhiquan Wang ◽  
Xiaoxiao Pei ◽  
...  
Keyword(s):  
Ethanol Metabolism ◽  
Flooding Tolerance ◽  
Transcriptome Data ◽  
Low Oxygen ◽  
Anaerobic Conditions ◽  
Waterlogging Tolerance ◽  
Waterlogging Stress ◽  
Adh Genes ◽  
Oxygen Conditions ◽  
Stems And Leaves

The Taxodium hybrid ‘Zhongshanshan 406’ (T. hybrid ‘Zhongshanshan 406’) [Taxodium mucronatum Tenore × Taxodium distichum (L.). Rich] has an outstanding advantage in flooding tolerance and thus has been widely used in wetland afforestation in China. Alcohol dehydrogenase genes (ADHs) played key roles in ethanol metabolism to maintain energy supply for plants in low-oxygen conditions. Two ADH genes were isolated and characterized—ThADH1 and ThADH4 (GenBank ID: AWL83216 and AWL83217—basing on the transcriptome data of T. hybrid ‘Zhongshanshan 406’ grown under waterlogging stress. Then the functions of these two genes were investigated through transient expression and overexpression. The results showed that the ThADH1 and ThADH4 proteins both fall under ADH III subfamily. ThADH1 was localized in the cytoplasm and nucleus, whereas ThADH4 was only localized in the cytoplasm. The expression of the two genes was stimulated by waterlogging and the expression level in roots was significantly higher than those in stems and leaves. The respective overexpression of ThADH1 and ThADH4 in Populus caused the opposite phenotype, while waterlogging tolerance of the two transgenic Populus significantly improved. Collectively, these results indicated that genes ThADH1 and ThADH4 were involved in the tolerance and adaptation to anaerobic conditions in T. hybrid ‘Zhongshanshan 406’.

scholarly journals Genetic Analysis of Flooding Tolerance in an Andean Diversity Panel of Dry Bean (Phaseolus vulgaris L.)

2018 ◽  
Vol 9 ◽  
Author(s):  
Ali Soltani ◽  
Samira MafiMoghaddam ◽  
Atena Oladzad-Abbasabadi ◽  
Katelynn Walter ◽  
Patrick J. Kearns ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Genetic Analysis ◽  
Flooding Tolerance ◽  
Phaseolus Vulgaris L ◽  
Dry Bean ◽  
Diversity Panel

scholarly journals Root structure-function relationships in 74 species: evidence of a root economics spectrum related to carbon economy

2016 ◽  
Vol 210 (3) ◽  
pp. 815-826 ◽  
Author(s):  
Catherine Roumet ◽  
Marine Birouste ◽  
Catherine Picon-Cochard ◽  
Murielle Ghestem ◽  
Normaniza Osman ◽  
...  
Keyword(s):  
Structure Function ◽  
Root Structure ◽  
Carbon Economy

Root water gates and not changes in root structure provide new insights into plant physiological responses to drought, flooding and salinity

2021 ◽  
Author(s):  
Jean-Christophe Domec ◽  
John S King ◽  
Mary J Carmichael ◽  
Anna Treado Overby ◽  
Remi R Wortemann ◽  
...  
Keyword(s):  
Pinus Taeda ◽  
Vapor Pressure Deficit ◽  
Water Movement ◽  
Root Structure ◽  
Transport Capacity ◽  
Transport Efficiency ◽  
Xylem Structure ◽  
Plant Hydraulics ◽  
Whole Plant ◽  
The Impact

Abstract The influence of aquaporin (AQP) activity on plant water movement remains unclear, especially in plants subject to unfavorable conditions. We applied a multitiered approach at a range of plant scales to (i) characterize the resistances controlling water transport under drought, flooding and flooding plus salinity conditions; (ii) quantify the respective effects of AQP activity and xylem structure on root (Kroot), stem (Kstem) and leaf (Kleaf) conductances, and (iii) evaluate the impact of AQP-regulated transport capacity on gas exchange. We found that drought, flooding and flooding-salinity reduced Kroot and root AQP activity in Pinus taeda, whereas Kroot of the flood-tolerant Taxodium distichum did not decline under flooding. The extent of the AQP-control of transport efficiency varied among organs and species, ranging from 35%-55% in Kroot to 10%-30% in Kstem and Kleaf. In response to treatments, AQP-mediated inhibition of Kroot rather than changes in xylem acclimation controlled the fluctuations in Kroot. The reduction in stomatal conductance and its sensitivity to vapor pressure deficit were direct responses to decreased whole-plant conductance triggered by lower Kroot and larger resistance belowground. Our results provide new mechanistic and functional insights on plant hydraulics that are essential to quantifying the influences of future stress on ecosystem function.

Effects of Phospholipase A2 on Lumbar Nerve Root Structure and Function

Spine ◽  
1997 ◽  
Vol 22 (10) ◽  
pp. 1057-1064 ◽  
Author(s):  
Chaoyang Chen ◽  
John M. Cavanaugh ◽  
Cuneyt A. Ozaktay ◽  
Srinivasu Kallakuri ◽  
Albert I. King
Keyword(s):  
Phospholipase A2 ◽  
Nerve Root ◽  
Structure And Function ◽  
Root Structure ◽  
Lumbar Nerve Root ◽  
And Function
Sign in / Sign up

Export Citation Format

Share Document