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1. A temporal and spatial contribution of asparaginase to asparagine catabolism during development of rice grains

Author:
Yabuki, Yui; Ohashi, Miwa; Imagawa, Fumi; Ishiyama, Keiki; Beier, MarcelPascal; Konishi, Noriyuki; Umetsu-Ohashi, Toshiko; Hayakawa, Toshihiko; Yamaya, Tomoyuki; Kojima, Soichi
Source:
Rice 2017 v.10 no.1 pp. 3
ISSN:
1939-8425
Subject:
ripening,   etc   ; ammonium; asparaginase; asparagine; aspartic acid; gene expression; inflorescences; leaves; legumes; mesophyll; metabolism; organic nitrogen compounds; phloem companion cells; quantitative polymerase chain reaction; rice; sap; vascular bundles; xylem;     Show all 18 Subjects
Abstract:
... BACKGROUND: Asparagine is one of the most dominant organic nitrogen compounds in phloem and xylem sap in a wide range of plant species. Asparaginase (ASNase; EC, 3.5.1.1) catabolizes asparagine into aspartate and ammonium; therefore, it is suggested to play a key role in asparagine metabolism within legume sink organs. However, the metabolic fate of asparagine in source and sink organs during rice ...
DOI:
10.1186/s12284-017-0143-8
PubMed:
28124210
PubMed Central:
PMC5267587

2. OsASR5 enhances drought tolerance through a stomatal closure pathway associated with ABA and H2O2 signalling in rice

Author:
Li, Jinjie; Li, Yang; Yin, Zhigang; Jiang, Jihong; Zhang, Minghui; Guo, Xiao; Ye, Zhujia; Zhao, Yan; Xiong, Haiyan; Zhang, Zhanying; Shao, Yujie; Jiang, Conghui; Zhang, Hongliang; An, Gynheung; Paek, Nam‐Chon; Ali, Jauhar; Li, Zichao
Source:
Plant biotechnology journal 2017 v.15 no.2 pp. 183-196
ISSN:
1467-7644
Subject:
ripening,   etc   ; Arabidopsis; Escherichia coli; Oryza sativa; abscisic acid; biosynthesis; drought; drought tolerance; food crops; gene overexpression; genes; genetic improvement; germination; hydrogen peroxide; leaves; loss-of-function mutation; mutants; osmotolerance; plant growth; proteins; rice; second messengers; stomatal conductance; stomatal movement; water content; water stress; yeasts;     Show all 27 Subjects
Abstract:
... Drought is one of the major abiotic stresses that directly implicate plant growth and crop productivity. Although many genes in response to drought stress have been identified, genetic improvement to drought resistance especially in food crops is showing relatively slow progress worldwide. Here, we reported the isolation of abscisic acid, stress and ripening (ASR) genes from upland rice variety, I ...
DOI:
10.1111/pbi.12601
PubMed:
27420922
PubMed Central:
PMC5258865