Relative Lengths of Leaf Sheath and Blade with Reference to the Developmental Stages of the Rice Plant

Nature ◽  
1960 ◽  
Vol 187 (4733) ◽  
pp. 259-260
Author(s):  
B. SAHA
Keyword(s):  
Rice Plant ◽  
Developmental Stages ◽  
Leaf Sheath

Localization of acid phosphatases in root cap of rice plant

1991 ◽  
Vol 49 ◽  
pp. 224-225
Author(s):  
Y. R. Chen ◽  
Y. F. Huang ◽  
W. S. Chen
Keyword(s):  
Rice Plant ◽  
Developmental Stages ◽  
Uranyl Acetate ◽  
Root Cap ◽  
Plant Tissues ◽  
Acid Phosphatases ◽  
Root Tips ◽  
Buffer Solution ◽  
Cacodylate Buffer ◽  
Ethanol Series

Acid phosphatases are widely distributed in different tisssues of various plants. Studies on subcellular localization of acid phosphatases show they might be present in cell wall, plasma lemma, mitochondria, plastid, vacuole and nucleus. However, their localization in rice cell varies with developmental stages of cells and plant tissues. In present study, acid phosphatases occurring in root cap are examined.Sliced root tips of ten-day-old rice(Oryza sativa) seedlings were fixed in 0.1M cacodylate buffer containing 2.5% glutaraldehyde for 2h, washed overnight in same buffer solution, incubated in Gomori's solution at 37° C for 90min, post-fixed in OsO4, dehydrated in ethanol series and finally embeded in Spurr's resin. Sections were doubly stained with uranyl acetate and lead citrate, and observed under Hitachi H-600 at 75 KV.

Dependence of Length of Leaf Lamina on Length of Leaf Sheath in the Rice Plant

Nature ◽  
1962 ◽  
Vol 196 (4859) ◽  
pp. 1115-1116 ◽  
Author(s):  
B. A. C. ENYI
Keyword(s):  
Rice Plant ◽  
Leaf Sheath ◽  
Leaf Lamina

scholarly journals Characterizing potential repelling volatiles for “push-pull” strategy against stem borer: a case study in Chilo auricilius

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Xin Yi ◽  
Song Shi ◽  
Peidan Wang ◽  
Yaoyao Chen ◽  
Qiqi Lu ◽  
...  
Keyword(s):  
Rice Plant ◽  
Developmental Stages ◽  
Stem Borer ◽  
Field Trapping ◽  
Stem Borers ◽  
Recognition Mechanism ◽  
Main Host ◽  
Specific Stage ◽  
Pull Strategy

Abstract Background Massive techniques have been evaluated for developing different pest control methods to minimize fertilizer and pesticide inputs. As “push-pull” strategy utilizes generally non-toxic chemicals to manipulate behaviors of insects, such strategy is considered to be environmentally friendly. “Push-pull” strategy has been extraordinarily effective in controlling stem borers, and the identification of new “pushing” or “pull” components against stem borers could be significantly helpful. Results In this study, the results of field trapping assay and behavioral assay showed the larvae of C.auricilius, one kind of stem borers, could be deterred by rice plant under tilling stage, its main host crop. The profiles of volatiles were compared between rice plants under two different developmental stages, and α-pinene was identified as a key differential component. The repelling activity of α-pinene against C.auricilius was confirmed by Y-tube olfactometer. For illuminating the olfactory recognition mechanism, transcriptome analysis was carried out, and 13 chemosensory proteins (CSPs) were identified in larvae and 19 CSPs were identified in adult of C.auriciliu, which was reported for the first time in this insect. Among these identified CSPs, 4 CSPs were significantly regulated by α-pinene treatment, and CSP8 showed good binding affinity with α-pinene in vitro. Conclusions Overall, C.auricilius could be repelled by rice plant at tilling stage, and our results highlighted α-pinene as a key component in inducing repelling activity at this specific stage and confirmed the roles of some candidate chemosensory elements in this chemo-sensing process. The results in this study could provide valuable information for chemosensory mechanism of C.auricilius and for identification of “push” agent against rice stem borers.

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